Hey everyone. I got a brand new 15" PowerBook G4 with 80GB 5400RPM drive. It's a wonderful machine, but there's one thing that seems a bit unsettling to me, but maybe it's normal and I'd like to hear from everyone else with the same machine. When I put the machine to sleep, I continue to hear a very, very faint high-pitched buzzing noise from the right-side of the machine. I believe this is where the hard drive is. Does everyone else hear this? The noise is almost inaudible from a couple feet away, but is pretty clear when I put my ear near the keyboard on that side. Thanks for any insight any of you can provide!