We had a new hard drive put in our Mac, and now PSE8 says there is a licensing error and will not run. I tried to install a NEW one with a different serial number, but can't get past the error message. I tried several ways to uninstall the program, but nothing works. We want to stick with PSE8 to be able to continue to use Bridge. Anyone have an idea how to get the old serial number out so we can reinstall? We actually have PSE on only one computer--but Adobe apparently doesn't care, and their suggestions (when I can actually reach someone and not go in circles on the website) have been worthless. HELP! (PSE6 won't run on Mountain Lion).