--- windows.texi	29 Jun 2005 12:42:37 +0200	1.83
+++ windows.texi	30 Jun 2005 10:36:43 +0200	
@@ -1524,8 +1524,10 @@
 
 @defopt scroll-preserve-screen-position
 If this option is address@hidden, the scroll functions move point so
-that the vertical position of the cursor is unchanged, when that is
-possible.
+that the vertical position of the cursor is unchanged.  The position is
+kept only if the scroll command moved point vertically out of the
+window.  If the position should be kept with any type of scroll command,
+set the variable to the special symbol @code{always}.
 @end defopt
 
 @defopt next-screen-context-lines