Hi, My Macbook Pro 15" (the model right before the Unibodies cames) turn off instantly when I try to start it today. I didn´t make any changes or anything before I went to bed last night. Just placed gently at a "safe place" before I went to bed, and then this happends. It takes around 1 sec before everything blacks out. I hear the optical drive booting up, but nothing more than that. If I remove both RAM-"chips" the fan run continuesly, and a repetive beeping sounds comes from the machine. I´ve also tried everything in this guide withtout luck: http://support.apple.com/kb/TS1365 Any ideas or thoughts what to do next now? Is it food for Apple Service this, or are there other things I can try to get it working? Seems strange that it should just suddenly not work like this without any hard treathment or any changes since last night. Your help will be truly appreciated.