1. Create folder on user's desktop called Temp
2. Open project -> Edit Project Settings -> Project Folders tab -> highlight the bad project folder -> click Repair Broken Link -> select the Temp folder you created on the desktop -> Save changes
3. Go to Project Center Administration -> Projects tab -> highlight affected project
4. On the left side TASKS menu under Selected Project section select -> Project Utilities -> Repath Folder
5. For Original Location click the "..." button and select the Temp folder. For New Location click the "..." button and select the valid project folder and click OK.
6. Go back to project settings to remove the Temp folder