ok I know this just sounds ridiculous but I figured I give it a try in case there's a chance it happened to anyone... Recently, my macbook just makes this really weird sound randomly. It actually sounds like a "ghost" noise from one of those cheesy scary movies. I know, I don't know how to describe it. Every time it does, it lasts about 1 to 2 seconds. It just happens a few times a day. And it's the same exact sound every time. Of course I can't bring it to the Apple store 'cause I don't know when it'll happen again. Do you guys know what I should do besides reinstalling or restore from a Time Machine Backup? Thanks!!!