hi, so i've been using my macbook for about a year now without any problems. but recently i ran into someting. well actually i ran into the same problem twice! i was doing nothing but listening to music before i wanted to shut down my MB because it was time to go to bed. So I unplugged my basic USB logitech optical mouse and as soon as i did that OSX crashed. a message window popped up which told me in different languages that i have to restart the macbook by pushing the power button for a while. back in OSX it showed a report of the error that i then sent to apple. this has happened twice so far. what's wrong here?! any ideas?