Hi, I have my iTunes library on an external drive. I have two macs. Both run OK when I run iTunes and have the external drive attached. My problem: I have 2 apple TV's (One of each). It seems the configuration of the Syncing is stored on the laptop so if I plug the drive into the iMac and run iTunes it doesn't know about the Apple TV's. If I reset it up then it wants to nuke it away and resync the info across. (Over wifi takes forever... and is a PITA...) What I'm looking for (I Think!): Can I store the preferences for iTunes on the external drive so no matter which Mac I start iTunes on it just works using the same preferences... ??? Thanks! Glenn.