Hello, I have a MacBook Pro 13" from 2010. It's running Lion with all the latest updates. Today I was surfing the web had several apps open and was chatting on skype. Suddenly I noticed Skype hung itself up, it said "Not responding" then 30 seconds later non of the apps would respond like it was all frozen. I could only move the mouse cursor. It felt like the system was overloaded. Another few seconds later also the mouse froze. I gave it a few minutes hoping it would come back but nothing. So I held down the power button to turn if off. I restarted and when it's booting I see the white bar, as if it's trying to recover from the last crash, but about 10 seconds into booting, it just turns completely off. I never even get to the login screen. I left the laptop off for a few hours. I tried again, same thing over and over. Laptop completely turns off after about 10 seconds into booting. I also have windows 7 installed over bootcamp, so I tried loading that, works without probem! I am writing this post from Windows 7 now. I opened up windows explorer and had was browsing through the Mac partition, it all works, I get full read access. Guess it's not a hardware issue then -phew! I have no idea what I can do to fix that problem since I can't even get to the login screen. What can I do? Can it be a Kernel error? Or some kind of error while it tries to recover from the last crash? Is there any way to tell Mac not to try to recover from the last crash and just to a clean boot?