Hey guys, I've had my MBP 2.3 since the week of release (Feb or March?) either way, I've plagued with this problem about 4 times in the 4 months or so that I've had it, both before and after I installed the optibay with SSD. Today was the first time this has happened in Lion, and also the first time I noticed the audible alarm. I don't really know how to search, as I'm not sure how to describe this problem but here is a picture The first time I didn't think anything of it, and I generally forget about it shortly after each time. But after 4 times I remembered to quickly take a picture before holding the power button down and forcing a shutdown. There seems to be no trigger to setting of this. Any idea what would cause this? Edit. Also, want to note that this instance it happened driving a display from MDP-> DVI but it's happened on just the built in display as well.