Hey guys. My 360's fan has started making one helluva racket. It's about a year old (just out of full warranty) and it's not a noise any of our 360s have made before. It is so loud that I have to turn the tv up louder to hear it. After a little while, it'll quite down. It's kinda got me freaked out. I've blown it out with air thinking it might have something in the fan, but no luck. Any ideas? Thanks guys.