Hi, I recently acquired a PowerBook G4 from a friend (15inch, 2gig ram, 1.25ghz, OS 10.5.2) and i was viewing Tekzilla (Format: H264 Large) on iTunes. It was going smoothly until it froze 8 minutes into the show. I tried force quit and it had no effect, even after pressing it four to five times. Rebooted manually and tried to watch it again. Same thing happened after a few minutes. It's the newest version of iTunes. Can anyone help me?