Hey guys, I have a 20 inch imac, 2.66 ghz. Im using my dads computer to ask this because mine is just freezing when I click apps, move the mouse, etc. I bought the imac in 2009 and it was gooing good till now. My one year warranty is up and I sadly didnt get the AppleCare plan. My dad paid $500 at the apple store to fix a hardware problem about a month ago when it crashed. But now its been freezing for about a week now. I already put the install disk in and ran a repair and it fixed it for about 5 minutes than it starts freezing again and whenever it freezes all i see is a spin wheel. Im really lost... any ideas? thanks guys.