"assume" keyword not the answer to disappearing background

I have a program that displays a full-screen subfile with an Option field 
in front of each line.  The user can put a choice on the option line and 
the program will read down through the page performing the actions 
requested.  One of the actions calls a program that may pop out a window 
with information for the user.  This has all worked right up until Friday. 
 On Friday I made a small change that required recompiling both programs 
and their DDS.  Now, the first time the window pops up the background 
stays, but number 2 and after, the screen is black except the window.  Any 
suggestions as to what I used to know, but have forgotten?
 
_______________________
Booth Martin
Booth@MartinVT.com
http://www.MartinVT.com
_______________________
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