Ernst, I don't think the graphics cards are a problem - we have the problem in WinNT, Win95 and Win98 on 6 machines, always the same forms. I just published the WinNT since that's what I develop in.

Barbara

>The problem you describe is related with the graphic card you use.
>it only occurs with certain graphic adaptors. A list with adaptors causing problems is available on MS knowledgebase. Switching to windows98 solves this problem.