So, for the last week or so I'm been experiencing very strange symptoms, which I think are probably all connected: 1) My MBP (running 10.5.8 bought in August 2008) has from time to time just been turning itself off. Like, I'm just working on something and then it suddenly turns off. 2) My mouse from time to time stops responding to input, sometimes the keyboard does the same thing 3) When I restart after 1 or 2 occurs, it doesn't work. The computer turns on, I get to the screen with the apple on it (there's a chime all of that), then it goes to a plain blue screen and just stays there - the log in box never comes up. 4) In what I think may be related, my computer seems to be running extremely "hot" right now. After just normal use, I'm reaching GPU temperatures as high as 75 degrees according to iStat and CPU temps around 70. Anyway, I haven't spilled anything, dropped it, or anything like that. Any ideas what might be wrong? Do I need to take it into the Apple store (still under AppleCare but getting to the Apple store is a mega-hassle for me).