*** display-1.111.texi	Fri Jan 16 20:36:33 2004
--- display-1.111.acm.texi	Sun Jan 18 18:00:51 2004
***************
*** 966,971 ****
--- 966,978 ----
  beginning and end.  It also has properties that you can examine and set;
  these affect the display of the text within the overlay.
  
+ If text is inserted into or deleted from the buffer before the range
+ covered by an overlay, the beginning and end of the overlay are
+ automatically adjusted so that it continues to cover the same range of
+ text.  Similarly, if text is inserted into or deleted from the inside of
+ the range covered by an overlay, the overlay gets expanded or shrunk
+ accordingly by adjusting its end position.
+ 
  @menu
  * Overlay Properties::  How to read and set properties.
  			What properties do to the screen display.