Mac Pro (Early 2008) running Lion, freezes on Start up screen
I have a Early 2008 Mac Pro running Lion. Its been running well but then last night it froze while I was on the internet. Pretty rare that this happens so I held the power off button and turned it off. Turned it back on and it made the chime noise, apple logo came up, a grey spinning wheel came up for about 30 seconds and then it stopped spinning and the computer froze there.
I tried a bunch of different things. I tried rebooting in safe mode, Recovery mode, From time machine external hard drive, Tried booting in the Windows partition that I have (its on the same as the boot drive I'm trying to boot in Lion off of).
Any ideas on what is wrong with this? I'm hoping its just a hard drive but i fear worse.
Thanks!
Mac Pro, Mac OS X (10.6.1), Mac Pro Dual 2.8 GHz Quad Core Processors, 2 GB Ram, NVIDIA GeFo