Since I finally got round to updating from OS 10.5.6 to 10.5.8 the other day, I've had problems with my MBP (17" 2.33) randomly and occasionally shutting down. Never any problems with 10.5.6 but had to upgrade to get Safari 4 and iTunes updated. A couple of times, it seemed like it was just turning off with the battery run down without giving a warning, but just a few minutes ago, still running off battery, it just suddenly turned off while I was composing an email, needing a restart. Not doing anything strenuous with it, but was curious if I could figure out what the story was with the help of lovely forum members. If it's something I'm doing, then I'll stop. If it's something else, then it might be something to look into. Thanks in advance.