>>Sorry, but I only know of its existance and why it is there. I suggest sending Calvin Hsia an email about your problem, and if this function would help. He is probably the developer that coded it in the first place.
>
>I think the problem is not that important. We found the cause to be VPN. Since the application is not intended to be run through VPN, I think, I should not worry.
>
>We had some other display problems from time to time. I usually resolve them by calling thisform.cls() I would now know about sys(602) and may try it instead.
>
>Thanks again.
>
>I think if other developers using Terminal services are reading this now and have similar cases, then this thread can help to resolve them.

Best of luck. :-)