Has this happened to anyone else? The music files are all on an external hard drive, and are all there. But I had them all labled and in Library - Music. The stuff is still on the iPod itself, but not in iTunes anymore. What the Faaaaaah It says this It's not, or shouldn't be synced with another library. I've never plugged it in to another computer or iTunes. I've gotta drag and retrack everything I want on the iPod again??