Today I was playing that free truck game from the Mac App Store, the one where you're in a truck and have to drive on hills. I went to a hot corner for exposè, like i've done before with no issue. My machine then froze up, repeating the same sound from the game over and over and I couldn't do anything. So I force restarted and now it's stuck on the gray apple screen. Windows bootcamp works fine though it came to the blue chkdsk screen the first time I booted into it. I put in my Leopard disc (don't have a SL disc right now) and tried to repair disc. It detected 3 issues with something about a key but ultimately failed (gave me an error). What should I do? It's a 2008 C2D 2.4Ghz MBP with 3GB of RAM.