I had FCS HD installed but decided to change the location of my scratch drive. After doing that, FCS no longer works. I try to open it but it just doesn't boot all the way. I would like to uninstall FCS and start from the beginning, but I am new to Mac and I don't think I have completely uninstalled the software.

Right now, if I try to reinstall, the installer seems to recognize the software still on the machine and only allows me to upgrade.

Any help would be greatly appreciated. THANK YOU.