so my mbp just crashed. at the time i was running itunes, firefox, adium, and last.fm. i really wasnt doing anything at the time it crashed, but all of a sudden the song playing on itunes started repeating ala broken record, and the screen starting from the top darkened its way down to the bottom when a dark grey sign showed up saying you need to restart your computer in a few languages. I held down the power button to restart it and on the restart i got the silver startup screen with the apple and the spinning circle underneath. it was frozen in htat state for about 5 minutes when i just took out the battery to turn off the comp. when i put the battery back in and turned it on again everything was fine. what gives? should i be looking for something to see what could have gone wrong, or should i just write it off as a fluke and wait to see if it ever happens again?