Has anybody been having random shut downs with their MBP? I would unplug my power cable and it would just shut down on me at random times and won't turn back on unless i plug in the power cable. Last night it was running fine until the battery said 79% then *BAM* shut down Earlier today, unplugged the cable. 94% *BAM* shuts down again...when i try to turn it back on i see the lil light at the front of the book but then shuts off again before screen even turns on....anybody else have problems similiar to this? book has never fallen...not to my knowledge at least *looking for any dents/scratches. Never been opened (too afraid to) so i can't figure it out.