Hey all... I recently bought the latest Dual 2.0 G5 and love it, except the buzz that develops randomly (at least I think it's randomly, I can't make it happen yet). It's not the power supply problem that I've read about, because if I touch the front of the case the buzz goes away. Has anyone else had this problem? Any fixes? I'm sure if I take it to the genius bar I won't be able to make it happen again and it's an hour away.