Hi. I have a SR 2,4ghz Macbook Pro, with 4gb of crucial RAM. My laptop is shutting down a lot, randomly. A grey screen wipes down saying that I shoul restart the computer by pressing and holding the restart button. What do you guys think that may be the problem? RAM? My MOTU firewire soundcard? I had these shutdowns with my other Macbook Pro too, a 2,33ghz one, so I doubt it it the RAM. Everything is pointing to either the soundcard, or some kind of bug in OS X. Thanks in advance.