I was watching a full screen video and my MBP completely freezes (couldn't force quit anything). After a force shut down, my laptop hangs at the Apple with the spinning gear. I tried resetting the NVRAM, Safe Boot (hung at the Apple screen with spinning gear for 10 minutes, showed a status bar as if it was checking the disk then hung there for another 10-20 minutes), and Verbose mode (got a Kernel panic). When I booted from the install disk, I went into Disk Utility and checked my boot volume...it had the correct format and when I ran a verify/repair it said the drive was ok. I restarted and tried to reinstall the OS but when it says select a dive it doesn't show anything (after waiting for about 15 minutes). I'm not exactly sure what the problem is...I'm pretty stumped at this point. Will I need to wipe the disk clean in Disk Utility for the OS to recognize it when reinstalling?