Hi all, Been surfing these forums for a while now, they've been very helpful but I can't seem to work out what is wrong with my computer. Hopefully someone can help. My Specs: Model Name: MacBook Pro Model Identifier: MacBookPro6,2 OS: OS X 10.6.8 Processor Name: Intel Core i7 Processor Speed: 2.66 GHz Memory: 4 GB The Problem: Unpredictable crashing during normal use forcing me to hold down the power button to reset and reboot. No obvious links between crashes, could be using any program at the time. Crashes occur in 3 different ways: 1) Most of the time the computer just freezes, mouse wont work and keyboard goes dead. Screen will remain locked like this until i hard reset. Sometimes accompanied by HD light flashing 3 times repeatedly. Computer gradually heats up if I dont turn it off. 2) Gray screen of death. The 'please shut down' screen comes up. 3) Crazy static/white noise patterns dance all over the screen, computer then must be hard reset. Sometimes the crashes are accompanied by loud screeching noise, sometimes not. Happens at irregular intervals but often enough to make the computer unusable. Twice now the computer has been in my bag on standby and when Ive taken it out it has crashed and heated up to very hot temperatures. When I reboot the computer it turns on fine (though sometimes I get the 3 beeps of death thing first time around). What I've done to try and fix it: I found the hard drive to be corrupted and fixed it/ reset permissions using osx disk. Reinstalled OSX using disk. Ran basic diagnostics on startup disk, no problems found. Brought it into Apple retailer where I bought it, had hardware diagnostics run, came up with nothing. Brought it into another retailed where they ran full diagnostics, including manual hardware diagnostics, nothing found and they couldnt replicate problem. Brought it home today and within half an hour it crashed (freeze crash). I have now ran out of options, in my final year of collage I need to get this sorted ASAP. I figured it was the logic board but if diagnostics showed nothing i dont know what to think. Please if anyone can help I'd really appreciate it. (Also for all those living in Europe, consumer law states a mandatory 2 year warranty on ALL computers, overruling Apple's 1 year warranty. Please check this for yourself if you wish to act on it.) Thanks, G.