I have a macbook pro with OS 10.6.8 and am having a problem with the middle mouse click. I'm an student and I use maya to animate. Some time back my middle mouse button started bringing up expose (the little window that shows what programs are open, you click on and it goes to that window) I've tried changing all the expose and dashboard prefs, as well as the mouse prefs and none of them change the middle mouse. Does anyone know how to get rid of this?