Dear all, Apologies for posting this again, but I think I put it in the incorrect forum and hopefully this one will get a few more replies.... Hopefully someone on these forums might be able to shed a little bit of light on a problem I am having. I bought my 15in MacBook Pro (early 2011 model) in June this year and everything was going great and I love Mac OS X and everything else about it. However, I am starting to have a very annoying problem occur, randomly, and I would love some advice from you guys to help me out. My machine boots absolutely fine and runs normally but without any warning (quite often if I do a cmd-Q to quit a problem, or quit from the menu) it goes to a blue screen... very much akin to a screen of death from windows! Now it seems that nothing happens when I press any buttons but cmd-esc will take me to the media centre thingy (can't remember its name) and then I can click esc which takes me back to the main desktop. However... it doesn't last very long before the blue screen comes back. I then have to try and reboot as quick as I can do. I have listed a few of the hardware specs for the machine. Model Name: MacBook Pro Model Identifier: MacBookPro8,2 Processor Name: Intel Core i7 Processor Speed: 2 GHz Number of Processors: 1 Total Number of Cores: 4 L2 Cache (per Core): 256 KB L3 Cache: 6 MB Memory: 4 GB Boot ROM Version: MBP81.0047.B24 SMC Version (system): 1.69f1 Operating System: OS X 10.6.8 Thanks in advance, Matt.