Not sure I want to trust VSD any longer. Worked on a start up for a week on and off. Tried to open today and it says it can't open it, it's corrupt. Can't recover it because I never uploaded it. Just gone. Glad I didn't care much for it anyway.

This is very unusual behaviour. Yea if you didn't have it backed up anywhere I think you may be out of luck. Really hard to say what corrupted it but over all you can trust VSD. I have been using it for years. Its a very solid app.

Even if there's a problem with the program, what ever you created earlier should have been saved somewhere on your computer. When you start a VSD site, do a Save As and put it somewhere. If there's no .vnu file saved, there's nothing for VSD to upload anyway.

Have you tried uninstalling VSD and re-installing a fresh download? Make sure any anti-virus programs are turned off.