As I was once again having problems with rendering and burning, I decided to reinstall Studio 9. This worked in a previous situation, but not now. Could it be because I am now using an external drive? I did save my .stu files in another folder before reinstalling, so this can not be the problem. Studio 9 does recognize the projects, but says it can't open them without explaining why. I would appreciate any help I can get on this one. Studio 9 is good software when it comes do editing and such, but it always gives you major problems when rendering and burning....

if you reinstalled studio 9 from the original cd, try adding all the patches up to the version you had before.
or maybe it's the file path that has changed, and if you don't remember that, you'll have to recompose those projects.

Thanks a million, SVHS. Your advise works!