I just posted about my iTunes crashing on my powerbook g4(1.25ghz, 2gig ram, OS 10.5.2), but now it's everything. I would be using Safari for 15 minutes, it will crash. I will be using Word 08 and it'll crash. Last time the fan jumped in after 14 minutes of me watching a video in full screen and then a little later it crashed. Force quit won't work, only manual shutdown. Ive only used it for about a week since i got it from a friend who says this never happened. Never happened in the weeks of me using it either. Can anyone please help me?