Hey, If i set my displays to sleep in 1 minute (say, if I leave it on overnight, and want it to sleep pretty quickly), they both come back to life after a few minutes. Since they're bright, they absolutely illuminate the room and the S/O isn't too happy with me. I have an Alu iMac 24", Dell 24", bluetooth mouse, external USB drive, USB keyboard. I tried switching off the bluetooth mouse, and it was no better. Any idea what might be making the mac come back to life, or somewhere in a log that will tell me what caused it? Thanks!