As Sergey suggests more information is critical. What OS? How much memory? Does the system have dedicated video memory? What else is running? Any anti-virus software? Are you using any ActiveX controls on the forms? With these answers, I'm sure other questions may come up.

Rick

>Hi all
>
>I had this application running from the IDE. This application was kept running without really operating it with a couple of screens open.
>
>As soon as I tried to work with this app after the wait it generated a C0..05 error at the line READ EVENTS.
>
>What went wrong in waiting.