updated for version 7.1b
diff --git a/runtime/doc/arabic.txt b/runtime/doc/arabic.txt
index 95ce20f..f2b0f82 100644
--- a/runtime/doc/arabic.txt
+++ b/runtime/doc/arabic.txt
@@ -1,4 +1,4 @@
-*arabic.txt*	For Vim version 7.1a.  Last change: 2005 Mar 29
+*arabic.txt*	For Vim version 7.1b.  Last change: 2005 Mar 29
 
 
 		  VIM REFERENCE MANUAL	  by Nadim Shaikli
diff --git a/runtime/doc/usr_11.txt b/runtime/doc/usr_11.txt
index e3adf46..6d54a40 100644
--- a/runtime/doc/usr_11.txt
+++ b/runtime/doc/usr_11.txt
@@ -1,4 +1,4 @@
-*usr_11.txt*	For Vim version 7.1a.  Last change: 2006 Apr 24
+*usr_11.txt*	For Vim version 7.1b.  Last change: 2006 Apr 24
 
 		     VIM USER MANUAL - by Bram Moolenaar
 
diff --git a/runtime/doc/usr_28.txt b/runtime/doc/usr_28.txt
index bb8da7f..0ebd8c7 100644
--- a/runtime/doc/usr_28.txt
+++ b/runtime/doc/usr_28.txt
@@ -1,4 +1,4 @@
-*usr_28.txt*	For Vim version 7.1a.  Last change: 2006 Apr 24
+*usr_28.txt*	For Vim version 7.1b.  Last change: 2006 Apr 24
 
 		     VIM USER MANUAL - by Bram Moolenaar
 
diff --git a/runtime/doc/usr_40.txt b/runtime/doc/usr_40.txt
index 30c86a0..fe860dd 100644
--- a/runtime/doc/usr_40.txt
+++ b/runtime/doc/usr_40.txt
@@ -1,4 +1,4 @@
-*usr_40.txt*	For Vim version 7.1a.  Last change: 2006 Jun 21
+*usr_40.txt*	For Vim version 7.1b.  Last change: 2006 Jun 21
 
 		     VIM USER MANUAL - by Bram Moolenaar
 
diff --git a/runtime/doc/windows.txt b/runtime/doc/windows.txt
index 1b18b2e..d8d9c9f 100644
--- a/runtime/doc/windows.txt
+++ b/runtime/doc/windows.txt
@@ -1,4 +1,4 @@
-*windows.txt*   For Vim version 7.1a.  Last change: 2007 Mar 17
+*windows.txt*   For Vim version 7.1b.  Last change: 2007 Mar 17
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
diff --git a/runtime/ftplugin/mp.vim b/runtime/ftplugin/mp.vim
index 1d709ea..3709782 100644
--- a/runtime/ftplugin/mp.vim
+++ b/runtime/ftplugin/mp.vim
@@ -1,7 +1,7 @@
 " Vim filetype plugin file
 " Language:         MetaPost
 " Maintainer:       Nikolai Weibull <now@bitwi.se>
-" Latest Revision:  2006-04-19
+" Latest Revision:  2006-07-04
 
 if exists("b:did_ftplugin")
   finish
@@ -12,7 +12,7 @@
 
 setlocal comments=:% commentstring=%\ %s formatoptions-=t formatoptions+=croql
 
-if !exists(":FixBeginfigs") != 2
+if exists(":FixBeginfigs") != 2
   command -nargs=0 FixBeginfigs call s:fix_beginfigs()
 
   function! s:fix_beginfigs()
diff --git a/runtime/spell/pt/main.aap b/runtime/spell/pt/main.aap
index 9256a9b..78270e9 100644
--- a/runtime/spell/pt/main.aap
+++ b/runtime/spell/pt/main.aap
@@ -36,8 +36,9 @@
 # Fetching the pt_BR files from BrOffice.org (Brazilian OOo) 2.1. Should be
 # updated really soon.
 #
-BR_DIR = http://www.deso-se.com.br/downloads/download.php?arquivo=pt_BR-2700g
-BR_FNAME = pt_BR-2700g.zip
+BR_BASENAME = pt_BR-2007-04-11
+BR_DIR = http://www.deso-se.com.br/downloads/download.php?arquivo=$BR_BASENAME
+BR_FNAME = $(BR_BASENAME).zip
 
 :attr {fetch = $BR_DIR} $BR_FNAME
 
@@ -94,7 +95,7 @@
 
 # Removing /* ... */ header to avoid warnings.  Write it to the README file, it
 # contains the copyright notice.
-        :sys $VIM pt_BR.aff -e -c "set ff=unix" -c "/\/\*/,/\*\//w README_pt_BR.txt" -c "/\/\*/,/\*\//+1d" -c update -c q
+        :sys $VIM pt_BR.aff -e -c "set ff=unix" -c "/\/\*/,/\*\//w! README_pt_BR.txt" -c "/\/\*/,/\*\//+1d" -c update -c q
 
         #:sys $VIM README_pt_BR.txt -e -c "set ff=unix" -c update -c q
         @if not os.path.exists('pt_BR.orig.aff'):
diff --git a/runtime/syntax/plaintex.vim b/runtime/syntax/plaintex.vim
index 2e2bb31..7020c68 100644
--- a/runtime/syntax/plaintex.vim
+++ b/runtime/syntax/plaintex.vim
@@ -1,7 +1,7 @@
 " Vim syntax file
 " Language:         TeX (plain.tex format)
 " Maintainer:       Nikolai Weibull <now@bitwi.se>
-" Latest Revision:  2006-04-19
+" Latest Revision:  2006-10-26
 
 if exists("b:current_syntax")
   finish
@@ -14,6 +14,7 @@
       \ '\\[a-zA-Z@]\+'
 
 runtime! syntax/initex.vim
+unlet b:current_syntax
 
 syn match   plaintexComment                 display
       \ contains=ALLBUT,initexComment,plaintexComment
@@ -30,8 +31,6 @@
       \ '\\\%(plainoutput\|TeX\)\>'
 syn match   plaintexBoxCommand              display contains=@NoSpell
       \ '\\\%(null\|strut\)\>'
-syn match   plaintexCharacterCommand        display contains=@NoSpell
-      \ /\\\%(["#$%&'.=^_`~]\|``\|''\|-\{2,3}\|[?!]`\|^^L\|\~\|\%(a[ae]\|A[AE]\|acute\|[cdHoOPStuvijlL]\|copyright\|d\=dag\|folio\|ldotp\|[lr]q\|oe\|OE\|slash\|ss\|underbar\)\>\)/
 syn match   plaintexDebuggingCommand        display contains=@NoSpell
       \ '\\\%(showhyphens\|tracingall\|wlog\)\>'
 syn match   plaintexFontsCommand            display contains=@NoSpell
@@ -61,13 +60,17 @@
 
 if !exists("g:plaintex_no_math")
   syn region  plaintexMath                  matchgroup=plaintexMath
-      \ contains=@plaintexMath
+      \ contains=@plaintexMath,@NoSpell
       \ start='\$' skip='\\\\\|\\\$' end='\$'
   syn region  plaintexMath                  matchgroup=plaintexMath
-      \ contains=@plaintexMath keepend
+      \ contains=@plaintexMath,@NoSpell keepend
       \ start='\$\$' skip='\\\\\|\\\$' end='\$\$'
 endif
 
+" Keep this after plaintexMath, as we don’t want math mode started at a \$.
+syn match   plaintexCharacterCommand        display contains=@NoSpell
+      \ /\\\%(["#$%&'.=^_`~]\|``\|''\|-\{2,3}\|[?!]`\|^^L\|\~\|\%(a[ae]\|A[AE]\|acute\|[cdHoOPStuvijlL]\|copyright\|d\=dag\|folio\|ldotp\|[lr]q\|oe\|OE\|slash\|ss\|underbar\)\>\)/
+
 syn cluster plaintexMath
       \ contains=plaintexMathCommand,plaintexMathBoxCommand,
       \ plaintexMathCharacterCommand,plaintexMathDelimiter,