Hey guys, I turned on my iMac this morning and it froze at the gray loading screen. So I shut it off with the power button. I turned it back on and this screen popped up: I've tried to go through each of the menu choices with no luck. When I go through 'Reinstall OS X', I end up here: I purchased this used from someone, I don't have any of the discs you may get with the computer new. I asked him what I should do, he suggested this: "Hold the power button until it powers off. *Wait a few seconds and hit power again but hold down the option key. *It should give you a few choices to boot from. *You will want to select the one called "untitled" I believe." I tried the above. Holding 'Option' while it powered back up and this is what pops up: When I click on the picture of the drive, it takes me to the 'OS X Utilities' screen as pictured at the top of my thread. Any suggestions?