Hi all. I just picked up my new MBP yestrerday, and so far I am loving it. One thing though...there appears to be a faint whirring or clicking noise coming from the back left corner. It's very soft, but is just barely audible from where I sit. Is anybody else getting this? If it's just a little Rev A quirk, no big deal, but I want to know if I got a bad apple (no pun intended...okay, yes it was). Thanks.