So I'm about to log of my computer, and I notice my iTunes is open. I quit it. I get distracted doing other things before I finally finish and am ready to log off again, when BOOM, I notice iTunes has started again. What is going on here? Now, every few minutes, my iTunes just starts up without telling me, without even bouncing on the dock. Poof that little black arrow shows up and its all over my screen. HELP!