Good afternoon, Ive been trying to downgrade my Quicktime so I can Reinstall an mpeg-2 component. When The installer pops up and it gets to "Select destination for install" There are NO CHOICES.. It stays blank and I cant select any drives.. So I thought It might be a disk repair fixable issue. But when I opened Disc Utility it stays on "Gathering Disc Information" and never shows anything else. I have to force quit to get out of it. When i went to look at my mac system profiler it Freezes when i select ATA. Please Help . I am running Mac OSX 10.4.11 on a powerpc G5 I would appreciate some help.