I got a new Mac Pro two weeks ago, and it's been great, much faster than my macbook. However in those two weeks, i've had 4 freeze and crashes now, that's more than in years of using MacBooks. Symptoms are: the screen just freezes, nothing moves anymore, not even the mouse. The sounds hangs, and after a few seconds the mac shuts down and restarts. On two of these crashes, i saw a red light from the bottom of the tower. Anyone else experienced this? Does anyone know what the red light means? Any input to find the source of these crashes and what to do next is welcome.