Hello all. This past weekend, my iMac began freezing up. It's a 21.5' iMac purchased around January / February (before the sandybridge processors came out). I turned my computer off, thinking the issue was because the computer hadn't been shut down in a while, as my computer had been resting in sleep mode for a few weeks. When I turned the computer back on (which took quite a while), I found that the Finder was unable to be used. It would crash every time an application was minimized, or went into the background momentarily (ie - Finder would crash loading Safari). Items on the desktop could barely be moved, and afterwards Finder would crash and turn itself back on again. Today, the problem became unbearable. I repaired disk permissions, and tried to verify the disc itself - it said I needed the OS X disc that came with the computer. I restarted the computer, and opened disc permissions with the disc that came with the iMac when it was purchased. It said the hard drive was corrupted. I repaired disc permissions again, and repaired the disc itself. Afterwards, I wiped the hard drive clean, and repartitioned it, allocating all memory to be used by the one partition. I then tried to reinstall Snow Leopard. The Snow Leopard install took a bit over 4 hours, despite it saying 38-40 minutes. When it reached around 8 minutes left on the install, it quit and said Mac OS X cannot be installed. I'm wondering if my operating system discs are faulty, or if there is a hardware issue to blame here. My computer should still be under warranty, but I'd prefer to fix it myself if possible (and easy). Any advice would greatly be appreciated.