>I see some weird results when I call a form from class. The situation is following:
>I have Custom Class which is essentially collection of methods common for many forms. I added the object (e.g. Sys1) based on this class to each form and call methods like thisform.Sys1.method4(). And sometimes my App generates an error when custom method contains command DO Form ... ("File ...scx does not exist"). Exe file works well and even if after the error I reload VFP, the error is gone and reveal again after I rebuild app next time.

Edward,
I also have the same problem. In my case if I modify or even look at a form (from within the project manager), then do a CLOSE ALL and DO my .app I get the ".scx does not exist" for the form I looked at. If I close VFP and then go back in and run the .app, everything is fine. For some reason, Fox is looking for the .scx file of the form instead of looking within the .app. I've never been able to figure this out, if you do, let me know.

jean-claude