I know it's a weird question but does anyone have a 360 where the power brick is noticeably loud? If you put your ear right up to it you can normally hear a faint hum, but I just purchased a Halo 3 Edition 360 and the sound it makes is significantly more discernible than on my old premium 360. It makes a moderate whirring sound (like a laptop's fan) but, even worse, it continuously goes up and down in intensity, to the point that it's noticeable and slightly annoying. I noticed the model number on the adapter is different from before and was wondering if that was the reason or if it was defective (or would the sound go away after prolonged use?). Should I safely be able to use the old adapter on my new console?