Alright, I know everyone has been hearing about these and I started getting them in my MacBook (1.83 basic MacBook). They persisted for about 3 weeks, even after i took the ram out, I could even get into the OS without it shutting down but now its back running again...I dont know what happened. But this really made me mad seeing that I just spent 1200 bucks on a laptop and it wouldnt even stay on.