I was in a discussion with a friend about computer heat dissipation. He was impressed my Windtunnel PowerMac (Dual 1Ghz) had such legendarily powerful fans. Though he's never heard them spool up to full power I have on occasion after installing a software update. Does anyone know if there's a UNIX command or something I could use to override the software control to set them to 100% (or even, dare I say, 0%?) Trust me, I wouldn't do it for long. I love my computer and don't want the G4's going nuclear (so to speak) and melting through the case and dorm room floor.