diff --git a/runtime/doc/mbyte.txt b/runtime/doc/mbyte.txt
index a72d0f6..2b53ce3 100644
--- a/runtime/doc/mbyte.txt
+++ b/runtime/doc/mbyte.txt
@@ -1,4 +1,4 @@
-*mbyte.txt*     For Vim version 7.3c.  Last change: 2010 Jul 20
+*mbyte.txt*     For Vim version 7.3c.  Last change: 2010 Jul 26
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar et al.
@@ -928,7 +928,7 @@
 
 {only works Windows GUI and compiled with the |+multi_byte_ime| feature}
 
-To input multibyte characters on Windows, you have to use Input Method Editor
+To input multibyte characters on Windows, you can use an Input Method Editor
 (IME).  In process of your editing text, you must switch status (on/off) of
 IME many many many times.  Because IME with status on is hooking all of your
 key inputs, you cannot input 'j', 'k', or almost all of keys to Vim directly.
diff --git a/runtime/doc/message.txt b/runtime/doc/message.txt
index c4ed18b..d534cab 100644
--- a/runtime/doc/message.txt
+++ b/runtime/doc/message.txt
@@ -1,4 +1,4 @@
-*message.txt*   For Vim version 7.3c.  Last change: 2010 Jul 20
+*message.txt*   For Vim version 7.3c.  Last change: 2010 Jul 26
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -467,7 +467,16 @@
 is consuming your memory.  Be careful!  Vim is not completely prepared for an
 out-of-memory situation.  First make sure that any changes are saved.  Then
 try to solve the memory shortage.  To stay on the safe side, exit Vim and
-start again.  Also see |msdos-limitations|.
+start again.
+
+Buffers are only partly kept in memory, thus editing a very large file is
+unlikely to cause an out-of-memory situation.  Undo information is completely
+in memory, you can reduce that with these options:
+- 'undolevels'  Set to a low value, or to -1 to disable undo completely.  This
+  helps for a change that affects all lines.
+- 'undoreload' Set to zero to disable.
+
+Also see |msdos-limitations|.
 
 							*E339*  >
   Pattern too long
diff --git a/runtime/doc/todo.txt b/runtime/doc/todo.txt
index e6f5883..849fc89 100644
--- a/runtime/doc/todo.txt
+++ b/runtime/doc/todo.txt
@@ -1,4 +1,4 @@
-*todo.txt*      For Vim version 7.3c.  Last change: 2010 Jul 25
+*todo.txt*      For Vim version 7.3c.  Last change: 2010 Jul 26
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -31,6 +31,7 @@
 -------------------- Known bugs and current work -----------------------
 
 Access to free memory with :redir command. (Dominique Pelle, 2010 Jul 25)
+Easier way to reproduce in later message.
 
 Patch for :find completion. (Nazri Ramliy)
 But I prefer to keep term.h and include/term.h  Nazri will work on it.