This is is on a 2.33 C2D MBP, pushing a 30" ACD at 2560x1600 in closed lid mode. It's weird. I can run a really CPU intensive task like Chess and the temperature of the processor rises to 80C, and the fans will still be really low. But say I open up Google Earth or something. The fans, all of a sudden, kick in and go into jet-engine mode, while the CPU stays at a modest 57C. It's as if the temperature of the system was dependent on CPU usage, but the velocity of the fans was dependent on the videocard usage. What's the deal?