--- a/runtime/doc/tabpage.txt
+++ b/runtime/doc/tabpage.txt
@@ -1,4 +1,4 @@
-*tabpage.txt*   For Vim version 7.0f.  Last change: 2006 Apr 25
+*tabpage.txt*   For Vim version 7.0f.  Last change: 2006 Apr 26
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -52,6 +52,9 @@ A double click with the mouse in the non
 tab page.  It is placed left of the position of the click.  The first click
 may select another tab page first, causing an extra screen update.
 
+This also works in a few GUI versions, esp. Win32 and Motif.  But only when
+clicking right of the labels.
+
 In the GUI tab pages line you can use the right mouse button to open menu.
 |tabline-menu|.