I can't burn a disk, any disk. Toast was working fine but now won't launch. I reinstalled it twice, threw out the preferences, tried launching it from different users (including Administrator), repaired disk permissions, ran Disk Warrior to rebuild directories... Toast still won't launch. So, I turned to the Disk Utility to try and burn a disk, the "Burn" button is always greyed-out. Serious Voodoo, I can't burn a thing even if I were a fire bug. Help!