diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index cbd233a..dc58f1c 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -1,4 +1,4 @@
-*eval.txt*      For Vim version 7.0aa.  Last change: 2005 Jan 27
+*eval.txt*      For Vim version 7.0aa.  Last change: 2005 Jan 31
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -1458,6 +1458,7 @@
 inputsecret( {prompt} [, {text}]) String  like input() but hiding the text
 insert( {list}, {item} [, {idx}]) List	insert {item} in {list} [before {idx}]
 isdirectory( {directory})	Number	TRUE if {directory} is a directory
+islocked( {expr})		Number	TRUE if {expr} is locked
 items( {dict})			List	List of key-value pairs in {dict}
 join( {list} [, {sep}])		String	join {list} items into one String
 keys( {dict})			List	List of keys in {dict}
@@ -2783,6 +2784,19 @@
 		exist, or isn't a directory, the result is FALSE.  {directory}
 		is any expression, which is used as a String.
 
+islocked({expr})					*islocked()*
+		The result is a Number, which is non-zero when {expr} is the
+		name of a locked variable.
+		{expr} must be the name of a variable, List item or Dictionary
+		entry, not the variable itself!  Example: >
+			:let alist = [0, ['a', 'b'], 2, 3]
+			:lockvar 1 alist
+			:echo islocked('alist')		" 1
+			:echo islocked('alist[1]')	" 0
+
+<		When {expr} is a variable that does not exist you get an error
+		message.  Use |exists()| to check for existance.
+
 items({dict})						*items()*
 		Return a List with all the key-value pairs of {dict}.  Each
 		List item is a list with two items: the key of a {dict} entry
@@ -4161,7 +4175,14 @@
 arguments an argument "..." can be specified, which means that more arguments
 may optionally be following.  In the function the extra arguments can be used
 as "a:1", "a:2", etc.  "a:0" is set to the number of extra arguments (which
-can be 0).  "a:000" is set to a List that contains these arguments.
+can be 0).  "a:000" is set to a List that contains these arguments.  Note that
+"a:1" is the same as "a:000[0]".
+								*E742*
+The a: scope and the variables in it cannot be changed, they are fixed.
+However, if a List or Dictionary is used, you can changes their contents.
+Thus you can pass a List to a function and have the function add an item to
+it.  If you want to make sure the function cannot change a List or Dictionary
+use |:lockvar|.
 
 When not using "...", the number of arguments in a function call must be equal
 to the number of named arguments.  When using "...", the number of arguments
@@ -4457,10 +4478,11 @@
 				#	Number
 			    	*	Funcref
 
-							*:unlet* *:unl* *E108*
-:unl[et][!] {var-name} ...
-			Remove the internal variable {var-name}.  Several
-			variable names can be given, they are all removed.
+
+:unl[et][!] {name} ...					*:unlet* *:unl* *E108*
+			Remove the internal variable {name}.  Several variable
+			names can be given, they are all removed.  The name
+			may also be a List or Dictionary item.
 			With [!] no error message is given for non-existing
 			variables.
 			One or more items from a List can be removed: >
@@ -4470,6 +4492,52 @@
 				:unlet dict['two']
 				:unlet dict.two
 
+:lockv[ar][!] [depth] {name} ...			*:lockvar* *:lockv*
+			Lock the internal variable {name}.  Locking means that
+			it can no longer be changed (until it is unlocked).
+			A locked variable can be deleted: >
+				:lockvar v
+				:let v = 'asdf'		" fails!
+				:unlet v
+<							*E741*
+			If you try to change a locked variable you get an
+			error message: "E741: Value of {name} is locked"
+
+			[depth] is relevant when locking a List or Dictionary.
+			It specifies how deep the locking goes:
+				1	Lock the List or Dictionary itself,
+					cannot add or remove items, but can
+					still change their values.
+				2	Also lock the values, cannot change
+					the items.  If an item is a List or
+					Dictionary, cannot add or remove
+					items, but can still change the
+					values.
+				3	Like 2 but for the List/Dictionary in
+					the List/Dictionary, one level deeper.
+			The default [depth] is 2, thus when {name} is a List
+			or Dictionary the values cannot be changed.
+								*E743*
+			For unlimited depth use [!] and omit [depth].
+			However, there is a maximum depth of 100 to catch
+			loops.
+
+			Note that when two variables refer to the same List
+			and you lock one of them, the List will also be locked
+			when used through the other variable.  Example: >
+				:let l = [0, 1, 2, 3]
+				:let cl = l
+				:lockvar l
+				:let cl[1] = 99		" won't work!
+<			You may want to make a copy of a list to avoid this.
+			See |deepcopy()|.
+
+
+:unlo[ckvar][!] [depth] {name} ...			*:unlockvar* *:unlo*
+			Unlock the internal variable {name}.  Does the
+			opposite of |:lockvar|.
+
+
 :if {expr1}			*:if* *:endif* *:en* *E171* *E579* *E580*
 :en[dif]		Execute the commands until the next matching ":else"
 			or ":endif" if {expr1} evaluates to non-zero.
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index 0adbb8d..d79aab7 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1,4 +1,4 @@
-*options.txt*	For Vim version 7.0aa.  Last change: 2005 Jan 26
+*options.txt*	For Vim version 7.0aa.  Last change: 2005 Jan 30
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -4402,6 +4402,10 @@
 	knows about pasting and will mostly do the right thing without 'paste'
 	being set.  The same is true for a terminal where Vim handles the
 	mouse clicks itself.
+	This option is reset when starting the GUI.  Thus if you set it in
+	your .vimrc it will work in a terminal, but not in the GUI.  Setting
+	'paste' in the GUI has side effects: e.g., the Paste toolbar button
+	will no longer work in Insert mode, because it uses a mapping.
 	When the 'paste' option is switched on (also when it was already on):
 		- mapping in Insert mode and Command-line mode is disabled
 		- abbreviations are disabled
diff --git a/runtime/doc/repeat.txt b/runtime/doc/repeat.txt
index 7ef1cf9..ef8442b 100644
--- a/runtime/doc/repeat.txt
+++ b/runtime/doc/repeat.txt
@@ -1,4 +1,4 @@
-*repeat.txt*    For Vim version 7.0aa.  Last change: 2004 Jul 30
+*repeat.txt*    For Vim version 7.0aa.  Last change: 2005 Jan 28
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -497,6 +497,10 @@
 of ":function".  For local functions this means that something like "<SNR>99_"
 is prepended.
 
+Note that functions are first loaded and later executed.  When they are loaded
+the "file" breakpoints are checked, when they are executed the "func"
+breakpoints.
+
 
 DELETING BREAKPOINTS
 						*:breakd* *:breakdel* *E161*
diff --git a/runtime/doc/tags b/runtime/doc/tags
index e86052c..227d1f3 100644
--- a/runtime/doc/tags
+++ b/runtime/doc/tags
@@ -2059,6 +2059,8 @@
 :loadview	starting.txt	/*:loadview*
 :loc	motion.txt	/*:loc*
 :lockmarks	motion.txt	/*:lockmarks*
+:lockv	eval.txt	/*:lockv*
+:lockvar	eval.txt	/*:lockvar*
 :ls	windows.txt	/*:ls*
 :lu	map.txt	/*:lu*
 :lunmap	map.txt	/*:lunmap*
@@ -2118,6 +2120,7 @@
 :mzfile	if_mzsch.txt	/*:mzfile*
 :mzscheme	if_mzsch.txt	/*:mzscheme*
 :n	editing.txt	/*:n*
+:nbkey	netbeans.txt	/*:nbkey*
 :ne	editing.txt	/*:ne*
 :new	windows.txt	/*:new*
 :next	editing.txt	/*:next*
@@ -2505,6 +2508,8 @@
 :unhide	windows.txt	/*:unhide*
 :unl	eval.txt	/*:unl*
 :unlet	eval.txt	/*:unlet*
+:unlo	eval.txt	/*:unlo*
+:unlockvar	eval.txt	/*:unlockvar*
 :unm	map.txt	/*:unm*
 :unm!	map.txt	/*:unm!*
 :unmap	map.txt	/*:unmap*
@@ -3641,6 +3646,10 @@
 E739	starting.txt	/*E739*
 E74	message.txt	/*E74*
 E740	eval.txt	/*E740*
+E741	eval.txt	/*E741*
+E742	eval.txt	/*E742*
+E743	eval.txt	/*E743*
+E744	netbeans.txt	/*E744*
 E75	vi_diff.txt	/*E75*
 E76	pattern.txt	/*E76*
 E77	message.txt	/*E77*
@@ -5292,6 +5301,7 @@
 iquote	motion.txt	/*iquote*
 is	motion.txt	/*is*
 isdirectory()	eval.txt	/*isdirectory()*
+islocked()	eval.txt	/*islocked()*
 items()	eval.txt	/*items()*
 iw	motion.txt	/*iw*
 i{	motion.txt	/*i{*
@@ -5553,6 +5563,7 @@
 ncf-syntax	syntax.txt	/*ncf-syntax*
 ncf.vim	syntax.txt	/*ncf.vim*
 netbeans	netbeans.txt	/*netbeans*
+netbeans-commands	netbeans.txt	/*netbeans-commands*
 netbeans-configure	netbeans.txt	/*netbeans-configure*
 netbeans-download	netbeans.txt	/*netbeans-download*
 netbeans-intro	netbeans.txt	/*netbeans-intro*
diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index 40f68b3..fa1908c 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -1,7 +1,7 @@
 " Vim support file to detect file types
 "
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2005 Jan 24
+" Last Change:	2005 Jan 27
 
 " Listen very carefully, I will say this only once
 if exists("did_load_filetypes")
@@ -541,7 +541,7 @@
 au BufNewFile,BufRead *.fs,*.ft			setf forth
 
 " Fortran
-au BufNewFile,BufRead *.f,*.F,*.for,*.fpp,*.ftn,*.f77,*.F77,*.f90,*.F90,*.f95,*.F95	setf fortran
+au BufNewFile,BufRead *.f,*.F,*.for,*.fpp,*.FPP*.ftn,*.f77,*.F77,*.f90,*.F90,*.f95,*.F95	setf fortran
 
 " FStab
 au BufNewFile,BufRead fstab			setf fstab
@@ -647,15 +647,18 @@
 " Icewm menu
 au BufNewFile,BufRead */.icewm/menu		setf icemenu
 
-" Inform
-au BufNewFile,BufRead .indent.pro		setf indent
-
 " IDL (Interactive Data Language)
 au BufNewFile,BufRead *.pro			setf idlang
 
 " Inform
+au BufNewFile,BufRead .indent.pro		setf indent
+
+" Inform
 au BufNewFile,BufRead *.inf,*.INF		setf inform
 
+" Ipfilter
+au BufNewFile,BufRead ipf.conf,ipf.rules	setf ipfilter
+
 " Informix 4GL (source - canonical, include file, I4GL+M4 preproc.)
 au BufNewFile,BufRead *.4gl,*.4gh,*.m4gl	setf fgl
 
diff --git a/runtime/lang/menu_zh_tw.big5.vim b/runtime/lang/menu_zh_tw.big5.vim
index 0810159..f437ce7 100644
--- a/runtime/lang/menu_zh_tw.big5.vim
+++ b/runtime/lang/menu_zh_tw.big5.vim
@@ -1 +1,3 @@
+" Menu Translations:	Traditional Chinese
+
 source <sfile>:p:h/menu_chinese_taiwan.950.vim
diff --git a/runtime/lang/menu_zh_tw.utf-8.vim b/runtime/lang/menu_zh_tw.utf-8.vim
index 871cece..97c56a3 100644
--- a/runtime/lang/menu_zh_tw.utf-8.vim
+++ b/runtime/lang/menu_zh_tw.utf-8.vim
@@ -1,6 +1,6 @@
-" Menu Translations:	Traditional Chinese (for UTF-8)
-" Translated By:	Hung-Teh, Lin	<piaip@csie.ntu.edu.tw>
-" Last Change:		Thu Apr 24 17:35:17 CST 2003
+" Menu Translations:	Traditional Chinese
+" Translated By:	Hung-Te Lin	<piaip@csie.ntu.edu.tw>
+" Last Change:		2005/01/28 02:51:38
 
 " {{{ Quit when menu translations have already been done.
 if exists("did_menu_trans")
@@ -19,7 +19,8 @@
 menutrans &How-to\ links	如何作\.\.\.(&H)
 menutrans &GUI			圖型界面(&G)
 menutrans &Credits		感謝(&C)
-menutrans Co&pying		版權宣告(&P)
+menutrans Co&pying		版權(&P)
+menutrans &Sponsor/Register		贊助/註冊(&S)
 menutrans O&rphans		拯救孤兒(&R)
 " ------------------------------------------------------------------------
 menutrans &Version		程式版本資訊(&V)
@@ -59,7 +60,7 @@
 menutrans Put\ &Before<Tab>[p		貼到游標前(&B)<Tab>[p
 menutrans Put\ &After<Tab>]p		貼到游標後(&A)<Tab>]p
 menutrans &Delete<Tab>x			刪除(&D)<Tab>x
-menutrans &Select\ all<Tab>ggVG		全選(&S)<Tab>ggvG
+menutrans &Select\ All<Tab>ggVG		全選(&S)<Tab>ggvG
 " ------------------------------------------------------------------------
 menutrans &Find\.\.\.			尋找(&F)\.\.\.
 menutrans Find\ and\ Rep&lace\.\.\.	尋找並取代(&L)\.\.\.
diff --git a/runtime/menu.vim b/runtime/menu.vim
index df9c65b..e89291b 100644
--- a/runtime/menu.vim
+++ b/runtime/menu.vim
@@ -2,7 +2,7 @@
 " You can also use this as a start for your own set of menus.
 "
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2004 Dec 04
+" Last Change:	2005 Jan 30
 
 " Note that ":an" (short for ":anoremenu") is often used to make a menu work
 " in all modes and avoid side effects from mappings defined by the user.
@@ -54,12 +54,13 @@
       " There is no exact match, try matching with a wildcard added
       " (e.g. find menu_de_de.iso_8859-1.vim if s:lang == de_DE).
       let s:lang = substitute(s:lang, '\.[^.]*', "", "")
-      exe "runtime! lang/menu_" . s:lang . "*.vim"
+      exe "runtime! lang/menu_" . s:lang . "[^a-z]*.vim"
 
       if !exists("did_menu_trans") && strlen($LANG) > 1
 	" On windows locale names are complicated, try using $LANG, it might
 	" have been set by set_init_1().
-	exe "runtime! lang/menu_" . tolower($LANG) . "*.vim"
+	" But don't match "slovak" when $LANG is "sl".
+	exe "runtime! lang/menu_" . tolower($LANG) . "[^a-z]*vim"
       endif
     endif
   endif
diff --git a/src/auto/configure b/src/auto/configure
index 38d9ad5..1a0a5a7 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -9721,30 +9721,24 @@
 if test -z "$SKIP_ATHENA" -o -z "$SKIP_NEXTAW" -o -z "$SKIP_MOTIF"; then
   cppflags_save=$CPPFLAGS
   CPPFLAGS="$CPPFLAGS $X_CFLAGS"
-
-for ac_header in X11/Xmu/Editres.h
-do
-as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
-  echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-else
-  # Is the header compilable?
-echo "$as_me:$LINENO: checking $ac_header usability" >&5
-echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
+  echo "$as_me:$LINENO: checking for X11/Xmu/Editres.h" >&5
+echo $ECHO_N "checking for X11/Xmu/Editres.h... $ECHO_C" >&6
+  cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-$ac_includes_default
-#include <$ac_header>
+
+#include <X11/Intrinsic.h>
+#include <X11/Xmu/Editres.h>
+int
+main ()
+{
+int i; i = 0;
+  ;
+  return 0;
+}
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
@@ -9768,109 +9762,20 @@
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
-  ac_header_compiler=yes
+  echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+		      cat >>confdefs.h <<\_ACEOF
+#define HAVE_X11_XMU_EDITRES_H 1
+_ACEOF
+
 else
   echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-ac_header_compiler=no
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
 fi
 rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6
-
-# Is the header present?
-echo "$as_me:$LINENO: checking $ac_header presence" >&5
-echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <$ac_header>
-_ACEOF
-if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
-  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null; then
-  if test -s conftest.err; then
-    ac_cpp_err=$ac_c_preproc_warn_flag
-    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
-  else
-    ac_cpp_err=
-  fi
-else
-  ac_cpp_err=yes
-fi
-if test -z "$ac_cpp_err"; then
-  ac_header_preproc=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-  ac_header_preproc=no
-fi
-rm -f conftest.err conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
-  yes:no: )
-    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
-echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header:     check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: $ac_header:     check for missing prerequisite headers?" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
-echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&5
-echo "$as_me: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
-echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
-    (
-      cat <<\_ASBOX
-## ------------------------------------------ ##
-## Report this to the AC_PACKAGE_NAME lists.  ##
-## ------------------------------------------ ##
-_ASBOX
-    ) |
-      sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  eval "$as_ac_Header=\$ac_header_preproc"
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-
-fi
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
   CPPFLAGS=$cppflags_save
 fi
 
@@ -9879,7 +9784,12 @@
   CPPFLAGS="$CPPFLAGS $X_CFLAGS"
 
 
-for ac_header in Xm/Xm.h Xm/XpmP.h
+
+
+
+
+for ac_header in Xm/Xm.h Xm/XpmP.h Xm/JoinSideT.h Xm/TraitP.h Xm/Manager.h \
+		   Xm/UnhighlightT.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
diff --git a/src/config.h.in b/src/config.h.in
index f182f7b..f9159aa 100644
--- a/src/config.h.in
+++ b/src/config.h.in
@@ -234,6 +234,10 @@
 #undef HAVE_X11_SUNKEYSYM_H
 #undef HAVE_XM_XM_H
 #undef HAVE_XM_XPMP_H
+#undef HAVE_XM_TRAITP_H
+#undef HAVE_XM_MANAGER_H
+#undef HAVE_XM_UNHIGHLIGHTT_H
+#undef HAVE_XM_JOINSIDET_H
 #undef HAVE_X11_XPM_H
 #undef HAVE_X11_XMU_EDITRES_H
 #undef HAVE_X11_SM_SMLIB_H
diff --git a/src/configure.in b/src/configure.in
index 0bccd1e..cc8d00e 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -2120,7 +2120,15 @@
 if test -z "$SKIP_ATHENA" -o -z "$SKIP_NEXTAW" -o -z "$SKIP_MOTIF"; then
   cppflags_save=$CPPFLAGS
   CPPFLAGS="$CPPFLAGS $X_CFLAGS"
-  AC_CHECK_HEADERS(X11/Xmu/Editres.h)
+dnl Xmu/Editres.h may exist but can only be used after including Intrinsic.h
+  AC_MSG_CHECKING([for X11/Xmu/Editres.h])
+  AC_TRY_COMPILE([
+#include <X11/Intrinsic.h>
+#include <X11/Xmu/Editres.h>],
+		      [int i; i = 0;],
+	      AC_MSG_RESULT(yes)
+		      AC_DEFINE(HAVE_X11_XMU_EDITRES_H),
+	      AC_MSG_RESULT(no))
   CPPFLAGS=$cppflags_save
 fi
 
@@ -2128,7 +2136,8 @@
 if test -z "$SKIP_MOTIF"; then
   cppflags_save=$CPPFLAGS
   CPPFLAGS="$CPPFLAGS $X_CFLAGS"
-  AC_CHECK_HEADERS(Xm/Xm.h Xm/XpmP.h)
+  AC_CHECK_HEADERS(Xm/Xm.h Xm/XpmP.h Xm/JoinSideT.h Xm/TraitP.h Xm/Manager.h \
+		   Xm/UnhighlightT.h)
   CPPFLAGS=$cppflags_save
 fi
 
diff --git a/src/ex_cmds2.c b/src/ex_cmds2.c
index 8ba1744..eac69b1 100644
--- a/src/ex_cmds2.c
+++ b/src/ex_cmds2.c
@@ -1828,8 +1828,8 @@
 		do_cmdline_cmd((char_u *)
 			      "command -nargs=* CompilerSet setlocal <args>");
 	    }
-	    do_unlet((char_u *)"current_compiler");
-	    do_unlet((char_u *)"b:current_compiler");
+	    do_unlet((char_u *)"current_compiler", TRUE);
+	    do_unlet((char_u *)"b:current_compiler", TRUE);
 
 	    sprintf((char *)buf, "compiler/%s.vim", eap->arg);
 	    if (cmd_runtime(buf, TRUE) == FAIL)
@@ -1853,7 +1853,7 @@
 		    vim_free(old_cur_comp);
 		}
 		else
-		    do_unlet((char_u *)"current_compiler");
+		    do_unlet((char_u *)"current_compiler", TRUE);
 	    }
 	}
     }
diff --git a/src/gui_w32.c b/src/gui_w32.c
index e0b545c..7e63549 100644
--- a/src/gui_w32.c
+++ b/src/gui_w32.c
@@ -3831,7 +3831,7 @@
 #if defined(FEAT_BEVAL) || defined(PROTO)
 
 /* BALLOON-EVAL IMPLEMENTATION FOR WINDOWS.
- *  Added by Sergey Khorev
+ *  Added by Sergey Khorev <sergey.khorev@gmail.com>
  *
  * The only reused thing is gui_beval.h and gui_mch_get_beval_info()
  * from gui_beval.c (note it uses x and y of the BalloonEval struct
diff --git a/src/if_cscope.c b/src/if_cscope.c
index f218ea4..f4286e4 100644
--- a/src/if_cscope.c
+++ b/src/if_cscope.c
@@ -1,7 +1,7 @@
 /* vi:set ts=8 sts=4 sw=4:
  *
  * CSCOPE support for Vim added by Andy Kahn <kahn@zk3.dec.com>
- * Ported to Win32 by Sergey Khorev <khorev@softlab.ru>
+ * Ported to Win32 by Sergey Khorev <sergey.khorev@gmail.com>
  *
  * The basic idea/structure of cscope for Vim was borrowed from Nvi.  There
  * might be a few lines of code that look similar to what Nvi has.
diff --git a/src/if_cscope.h b/src/if_cscope.h
index 8105128..a88ba63 100644
--- a/src/if_cscope.h
+++ b/src/if_cscope.h
@@ -1,7 +1,7 @@
 /* vi:set ts=8 sts=4 sw=4:
  *
  * CSCOPE support for Vim added by Andy Kahn <kahn@zk3.dec.com>
- * Ported to Win32 by Sergey Khorev <khorev@softlab.ru>
+ * Ported to Win32 by Sergey Khorev <sergey.khorev@gmail.com>
  *
  * The basic idea/structure of cscope for Vim was borrowed from Nvi.
  * There might be a few lines of code that look similar to what Nvi
diff --git a/src/nbdebug.h b/src/nbdebug.h
index 5aae15a..b540481 100644
--- a/src/nbdebug.h
+++ b/src/nbdebug.h
@@ -35,7 +35,6 @@
 #define NBDLEVEL(flags)		(nb_debug != NULL && (nb_dlevel & (flags)))
 
 #define NBDEBUG_TRACE	1
-//#define NBDEBUG_SENSE	2
 
 typedef enum {
 		WT_ENV = 1,		/* look for env var if set */
diff --git a/src/option.c b/src/option.c
index df2f8f5..0c6178d 100644
--- a/src/option.c
+++ b/src/option.c
@@ -4908,7 +4908,7 @@
 		/* The color scheme must have set 'background' back to another
 		 * value, that's not what we want here.  Disable the color
 		 * scheme and set the colors again. */
-		do_unlet((char_u *)"g:colors_name");
+		do_unlet((char_u *)"g:colors_name", TRUE);
 		free_string_option(p_bg);
 		p_bg = vim_strsave((char_u *)(dark ? "dark" : "light"));
 		check_string_option(&p_bg);
diff --git a/src/proto/eval.pro b/src/proto/eval.pro
index c570fb4..d85ab2e 100644
--- a/src/proto/eval.pro
+++ b/src/proto/eval.pro
@@ -27,7 +27,8 @@
 void set_context_for_expression __ARGS((expand_T *xp, char_u *arg, cmdidx_T cmdidx));
 void ex_call __ARGS((exarg_T *eap));
 void ex_unlet __ARGS((exarg_T *eap));
-int do_unlet __ARGS((char_u *name));
+void ex_lockvar __ARGS((exarg_T *eap));
+int do_unlet __ARGS((char_u *name, int forceit));
 void del_menutrans_vars __ARGS((void));
 char_u *get_user_var_name __ARGS((expand_T *xp, int idx));
 char_u *get_function_name __ARGS((expand_T *xp, int idx));
@@ -42,7 +43,6 @@
 char_u *set_cmdarg __ARGS((exarg_T *eap, char_u *oldarg));
 char_u *get_var_value __ARGS((char_u *name));
 void new_script_vars __ARGS((scid_T id));
-void vars_init __ARGS((hashtab_T *ht));
 void init_var_dict __ARGS((dict_T *dict, dictitem_T *dict_var));
 void vars_clear __ARGS((hashtab_T *ht));
 void ex_echo __ARGS((exarg_T *eap));
diff --git a/src/screen.c b/src/screen.c
index 0435eb5..6271b84 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -4165,8 +4165,8 @@
 #ifdef FEAT_MBYTE
 		    /* When there is a multi-byte character, just output a
 		     * space to keep it simple. */
-		    if (has_mbyte && mb_off2cells(LineOffset[screen_row - 1]
-						+ (unsigned)Columns - 1) != 1)
+		    if (has_mbyte && MB_BYTE2LEN(ScreenLines[LineOffset[
+					screen_row - 1] + (Columns - 1)]) > 1)
 			out_char(' ');
 		    else
 #endif
diff --git a/src/structs.h b/src/structs.h
index 6482e30..9d7bc92 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -963,7 +963,8 @@
  */
 typedef struct
 {
-    char	v_type;	/* see below: VAR_NUMBER, VAR_STRING, etc. */
+    char	v_type;	    /* see below: VAR_NUMBER, VAR_STRING, etc. */
+    char	v_lock;	    /* see below: VAR_LOCKED, VAR_FIXED */
     union
     {
 	varnumber_T	v_number;	/* number value */
@@ -981,6 +982,10 @@
 #define VAR_LIST    4	/* "v_list" is used */
 #define VAR_DICT    5	/* "v_dict" is used */
 
+/* Values for "v_lock". */
+#define VAR_LOCKED  1	/* locked with lock(), can use unlock() */
+#define VAR_FIXED   2	/* locked forever */
+
 /*
  * Structure to hold an item of a list: an internal variable without a name.
  */
@@ -1013,6 +1018,7 @@
     listitem_T	*lv_first;	/* first item, NULL if none */
     listitem_T	*lv_last;	/* last item, NULL if none */
     listwatch_T	*lv_watch;	/* first watcher, NULL if none */
+    char	lv_lock;	/* zero, VAR_LOCKED, VAR_FIXED */
 };
 
 /*
@@ -1032,6 +1038,7 @@
 #define DI_FLAGS_RO	1 /* "di_flags" value: read-only variable */
 #define DI_FLAGS_RO_SBX 2 /* "di_flags" value: read-only in the sandbox */
 #define DI_FLAGS_FIX	4 /* "di_flags" value: fixed variable, not allocated */
+#define DI_FLAGS_LOCK	8 /* "di_flags" value: locked variable */
 
 /*
  * Structure to hold info about a Dictionary.
@@ -1040,6 +1047,7 @@
 {
     int		dv_refcount;	/* reference count */
     hashtab_T	dv_hashtab;	/* hashtab that refers to the items */
+    char	dv_lock;	/* zero, VAR_LOCKED, VAR_FIXED */
 };
 
 
diff --git a/src/syntax.c b/src/syntax.c
index 7d015e1..4dc7b84 100644
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -3212,7 +3212,7 @@
 	else
 	{
 	    syntax_clear(curbuf);
-	    do_unlet((char_u *)"b:current_syntax");
+	    do_unlet((char_u *)"b:current_syntax", TRUE);
 	}
     }
     else
@@ -3313,7 +3313,7 @@
 {
     set_internal_string_var((char_u *)"syntax_cmd", (char_u *)"enable");
     syn_cmd_onoff(eap, "syntax");
-    do_unlet((char_u *)"g:syntax_cmd");
+    do_unlet((char_u *)"g:syntax_cmd", TRUE);
 }
 
 /*
@@ -3330,7 +3330,7 @@
     {
 	set_internal_string_var((char_u *)"syntax_cmd", (char_u *)"reset");
 	do_cmdline_cmd((char_u *)"runtime! syntax/syncolor.vim");
-	do_unlet((char_u *)"g:syntax_cmd");
+	do_unlet((char_u *)"g:syntax_cmd", TRUE);
     }
 }
 
@@ -6271,7 +6271,7 @@
 	     */
 #endif
 #ifdef FEAT_EVAL
-	    do_unlet((char_u *)"colors_name");
+	    do_unlet((char_u *)"colors_name", TRUE);
 #endif
 	    restore_cterm_colors();
 
diff --git a/src/testdir/test55.in b/src/testdir/test55.in
index 2fa26bf..89fbaae 100644
--- a/src/testdir/test55.in
+++ b/src/testdir/test55.in
@@ -2,7 +2,7 @@
 
 STARTTEST
 :so small.vim
-:fun Test()
+:fun Test(...)
 :" Creating List directly with different types
 :let l = [1, 'as''d', [1, 2, function("strlen")], {'a': 1},]
 :$put =string(l)
@@ -27,12 +27,12 @@
 :let d = {001: 'asd', 'b': [1, 2, function('strlen')], -1: {'a': 1},}
 :$put =string(d) . d.1
 :$put =string(sort(keys(d)))
-:$put =string(values(d))
+:$put =string (values(d))
 :for [key, val] in items(d)
 :  $put =key . ':' . string(val)
 :  unlet key val
 :endfor
-:call extend(d, {3:33, 1:99})
+:call extend  (d, {3:33, 1:99})
 :call extend(d, {'b':'bbb', 'c':'ccc'}, "keep")
 :try
 :  call extend(d, {3:333,4:444}, "error")
@@ -68,8 +68,12 @@
 :unlet l[2]
 :$put =string(l)
 :let l = range(8)
+:try
 :unlet l[:3]
 :unlet l[1:]
+:catch
+:$put =v:exception
+:endtry
 :$put =string(l)
 :"
 :unlet d.c
@@ -143,7 +147,7 @@
 :func d.func(a)
 :  return "a:". a:a
 :endfunc
-:$put = d.func(string(remove(d, 'func')))
+:$put =d.func(string(remove(d, 'func')))
 :"
 :" Nasty: deepcopy() dict that refers to itself (fails)
 :let d = {1:1, 2:2}
@@ -155,8 +159,102 @@
 :  $put =v:exception[:14]
 :endtry
 :"
+:" Locked variables
+:for depth in range(5)
+:  $put ='depth is ' . depth
+:  for u in range(3)
+:    unlet l
+:    let l = [0, [1, [2, 3]], {4: 5, 6: {7: 8}}]
+:    exe "lockvar " . depth . " l"
+:    if u == 1
+:      exe "unlockvar l"
+:    elseif u == 2
+:      exe "unlockvar " . depth . " l"
+:    endif
+:    let ps = islocked("l").islocked("l[1]").islocked("l[1][1]").islocked("l[1][1][0]").'-'.islocked("l[2]").islocked("l[2]['6']").islocked("l[2]['6'][7]")
+:    $put =ps
+:    let ps = ''
+:    try
+:      let l[1][1][0] = 99
+:      let ps .= 'p'
+:    catch
+:      let ps .= 'F'
+:    endtry
+:    try
+:      let l[1][1] = [99]
+:      let ps .= 'p'
+:    catch
+:      let ps .= 'F'
+:    endtry
+:    try
+:      let l[1] = [99]
+:      let ps .= 'p'
+:    catch
+:      let ps .= 'F'
+:    endtry
+:    try
+:      let l[2]['6'][7] = 99
+:      let ps .= 'p'
+:    catch
+:      let ps .= 'F'
+:    endtry
+:    try
+:      let l[2][6] = {99: 99}
+:      let ps .= 'p'
+:    catch
+:      let ps .= 'F'
+:    endtry
+:    try
+:      let l[2] = {99: 99}
+:      let ps .= 'p'
+:    catch
+:      let ps .= 'F'
+:    endtry
+:    try
+:      let l = [99]
+:      let ps .= 'p'
+:    catch
+:      let ps .= 'F'
+:    endtry
+:    $put =ps
+:  endfor
+:endfor
+:"
+:" a:000 function argument
+:" first the tests that should fail
+:try
+:  let a:000 = [1, 2]
+:catch
+:  $put ='caught a:000'
+:endtry
+:try
+:  let a:000[0] = 9
+:catch
+:  $put ='caught a:000[0]'
+:endtry
+:try
+:  let a:000[2] = [9, 10]
+:catch
+:  $put ='caught a:000[2]'
+:endtry
+:try
+:  let a:000[3] = {9: 10}
+:catch
+:  $put ='caught a:000[3]'
+:endtry
+:" now the tests that should pass
+:try
+:  let a:000[2][1] = 9
+:  call extend(a:000[2], [5, 6])
+:  let a:000[3][5] = 8
+:  let a:000[3]['a'] = 12
+:  $put =string(a:000)
+:catch
+:  $put ='caught ' . v:exception
+:endtry
+:"
 :endfun
-:call Test()  " This may take a while
+:call Test(1, 2, [3, 4], {5: 6})  " This may take a while
 :"
 :/^start:/,$wq! test.out
 ENDTEST
diff --git a/src/testdir/test55.ok b/src/testdir/test55.ok
index 868b116..922fdfc 100644
--- a/src/testdir/test55.ok
+++ b/src/testdir/test55.ok
@@ -30,3 +30,43 @@
 g:dict.func-4
 a:function('3')
 Vim(let):E698: 
+depth is 0
+0000-000
+ppppppp
+0000-000
+ppppppp
+0000-000
+ppppppp
+depth is 1
+1000-000
+ppppppF
+0000-000
+ppppppp
+0000-000
+ppppppp
+depth is 2
+1100-100
+ppFppFF
+0000-000
+ppppppp
+0000-000
+ppppppp
+depth is 3
+1110-110
+pFFpFFF
+0010-010
+pFppFpp
+0000-000
+ppppppp
+depth is 4
+1111-111
+FFFFFFF
+0011-011
+FFpFFpp
+0000-000
+ppppppp
+caught a:000
+caught a:000[0]
+caught a:000[2]
+caught a:000[3]
+[1, 2, [3, 9, 5, 6], {'a': 12, '5': 8}]
diff --git a/src/version.h b/src/version.h
index 3362a98..88aed5d 100644
--- a/src/version.h
+++ b/src/version.h
@@ -36,5 +36,5 @@
 #define VIM_VERSION_NODOT	"vim70aa"
 #define VIM_VERSION_SHORT	"7.0aa"
 #define VIM_VERSION_MEDIUM	"7.0aa ALPHA"
-#define VIM_VERSION_LONG	"VIM - Vi IMproved 7.0aa ALPHA (2005 Jan 27)"
-#define VIM_VERSION_LONG_DATE	"VIM - Vi IMproved 7.0aa ALPHA (2005 Jan 27, compiled "
+#define VIM_VERSION_LONG	"VIM - Vi IMproved 7.0aa ALPHA (2005 Jan 31)"
+#define VIM_VERSION_LONG_DATE	"VIM - Vi IMproved 7.0aa ALPHA (2005 Jan 31, compiled "