First of all, I meant to say macbook fan is always loud/going too fast. Not that it's always on. Something strange has happened to my laptop. The fan is suddenly on all the time, and relatively loud (maybe not the loudest, but still loud). I've attached a copy of Activity Monitor. As you can see, nothing unusual. I had even quit Firefox, Entourage, and a host of other programs to see whether one of them is causing the fan to go on a constant rage. What gives?