Hey, since the first day I got my MacBook Pro 15" 2.53 GHz (September 25th I got it) I noticed a buzzing sound from the speakers or under the keyboard when I would turn on my MacBook, interfering with the boot up Apple sound effect and also being very annoying. Apple even has a support page for it on their website: http://support.apple.com/kb/TS1823 . Should I call for service or just bring it in and see what the problem is. Thoughts? Advice?