Today I turned on my iBook and it started to boot up okay but then I just go to this blue screen and it just hanged there. I could hear the computer some sort of clicking noise (think of someone closeing a pad lock). I forcefully shut the laptop down by holding the power button and then turned it back on again. It works fine now, what does this mean though? I have several important docs on this laptop and can't afford to lose em one day b/c my comp won't start up. Also, it was just a blue screen, no text or anything. Oh yea, also, yesterday I opened up the laptop just to see if their was anything to see inside by taking out the keyboard and then putting it back. Would this have had anything to do with it? I didn't change anything inside the comp itself.