Hey everyone. I'm having some major issues with my macbook pro. First let me give you the specs: Macbook Pro Intel Core Duo 2.0ghz 2gb of RAM 250gb HD ATI x1600 128mb card History: No problems until December of 09. Around this time I started getting artifacts, occasional screen glitches, lines appearing, etc. My Applecare had just ended. I took it to the Apple store and paid approx $300 for a logic board replacement. Everything worked without a hitch when I got it back. No issues whatsoever. Until October '10. Starting in October, my computer begin to randomly do the following: Screen went black Fans began to spin full speed No response whatsoever, had to force restart At first this was intermittent and then began to become more of an issue. It is still incredibly inconsistent. It has stayed on for 12 hours and it has crashed before I can start it up all the way. I have checked the temperature, this doesn't seem to be the problem. I cannot find any consistency on when it occurs when it doesn't. I'm not technologically inept. I've done everything from replacing computer parts, soldering pieces, etc. But this problem has me bamboozled. Please help. I'm trying to hold off until the new MBP release, but I'm a grad student and it really hurts not to have a consistently working computer.