Hello, I am having serious problems with my Macbook Pro OS X 10.7.2 Lion (July 2011). For the last 8 hours i have been pulling my hair out trying to understand whats wrong, searched through hundreds of different help forums trying to find a cure. So i was hoping there was a Dr. House here who could help me solve this puzzle. The problem started occurring suddenly one day with no apparent reason (I was sitting on Facebook, closed the screen, came back 5 hours later and the problem had occurred). Keep in mind i am fairly new to mac, so my experience in Terminal and how a mac works in general is pretty bad. Symptoms: Fan running high Not warm Kernel_task using 300+% go the cpu Runs fine in safe mode (fans still run high though) I have tried a couple things i read might help with no luck: Cleaned with Cleanmymac Restarted (ofcourse) Uninstalled Printer driver Turned off wifi bluetooth etc devices Responding as if I were a PC user with a mac would be much appreciated.