Rick, you had this trouble a while back and here is the message you sent about finding the fix for it, hope it jogs your memory! inthane "Hi Jeff: You gave me the idea to check that an error had caused the problem. I deleted s few files generated by the Build process, One In OBJ Something like Form1 Resources, and the problem was resolved. So I then Deleted the Build and Obj folders which were rebuilt and now it seems to be working. That includes the Warning Pop-up that asks if I want to use an old version if build finishes with errors, Phew! I don't know what caused the problem but that was my fix. Actually I renamed the folders and tested before deleteing them just in case . . . Thanks for the idea, it helped. Perhaps that is what happens when you check the don't show me this message again in the build error warning box. The project uses the old version until the pre-built old exe and configuration modules have been deleted or otherwise manually updated, don't know but sounds good so that's a wrap! Rick Farmington Mich. USA ----- Original Message ----- From: "Jeff Berwick" < jeff@xxxxxxxxxxxx To: < programming@xxxxxxxxxxxxxxxxxxxx Sent: Tuesday, February 13, 2007 2:55 PM Subject: Re: Vb.net executing old code version If you have build errors, a dialogue box pops up which asks you f you want to try running a previous version of the program. It also has a checkbox which, if checked, will not show that dialogue box again. Is it possible that you've checked this checkbox at some point and selected "yes" instead of "no"? I don't know how to make that dialogue box reappear but, that may be part of your problem...That is, that you have an error so it is reverting. Hth, Jeff Hi Guys: I have a problem when I tried to F5 debug / Run my Project. I changed the source code in Form1 and F5ed to run the app but the old version of Form1 is still running. I don't think I did anything to cause this, but who knows, I'm good at breaking things. Why wouldn't my Project Re-Compile using the new version of Form1? I'm going back and see if I can figure anything out but this is mind blowing unless I'm just fried and missing something simple. Rick Farmington Mich. USA "