This may be a dumb question but what happens if I plug my iPod into a friend's computer (heading south for the holidays) and hers is set to automatically sync between pod and computer? Does iTunes give me an option to change the settings to Manual or does it just start adding songs from her machine or erasing songs from my iPod? There's no way to tell (that I've discovered to find out what iTunes is set to do on connection with an iPod. Is there a way to 'lock' the iPod? Or something? What am I overlooking? Help, please.