Will not boot, stuck on apple logo screen and spinning gear
I have an early 2009 iMac with Snow Leopard installed. The other day, while I was using it the screen froze. (It happened while in screen saver mode, however, I could see the mouse move). I did a hard reset by holding the power button down. Upon rebooting though, it would hang at the white Apple logo screen with the spinning gear. Eventually the gear would stop spinning and just get stuck there. I tried all the various key options. First I tried safe mode and it would get stuck at the same point. I did a PRAM reset and an SMC reset but that did not help. I booted off of the original install DVD as well as the Snow Leopard install DVD. Both would get stuck at the same point. I ran the AHT from each DVD and no errors were reported. I ran fsck from single user mode and some minor errors were corrected, but booting would still get stuck at the white screen / spinning gear.
Any clue as to why my system will not boot? By the way, i can easily boot off of an Ubuntu live CD and all the hardware seems to function fine.
Help!
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