So, my powerbook G4 has been a champ since '05. I give the thing to my fiance and all of the sudden its acting up! gah! Here's whats going on: He took over the computer about 2 weeks ago or so. Changed his settings; made it "his" (with regards to desktop/screensaver stuff); Bought a Mighty Mouse; imported a ton of music to iTunes and really that's been it. Last night he woke the computer up and his settings had all changed! The desktop The dock size the icons in the dock the mouse/trackpad cursor speed everything! Then he went to plug in his iPod and it said that it wasn't recognized and he went into iTunes and it was like he was going in there for the first time. He had to set up his iTunes and all of his music was gone! What would cause something to reset like that??? Any ideas??? I'm at a loss and probably going to take the thing to the genius bar. He's kinda freaked about someone somehow hacking into his computer possibly with Bluetooth. Is that possible??? Should you turn bluetooth off before you close down?