I bought an iMac to accompany my PowerBook. To import my music to the new iMac, I just copied the whole iTunes directory off the Time Machine backup of the PowerBook. My iPod then synced without question with the iMac, apparently because it's considered the 'same' library. Now the problem comes when I connect the iPod to my PowerBoook: it starts syncing to the outdated database on my PB, that's not what I want. (The reason I connect the iPod is just to charge it). I tried disabling syncing, but then I got a warning that all music would be deleted from the iPod, which is obviously not what I want. So now I have two libraries with different contents but (I think) the same ID, and I want my iPod to only sync with one of them. What to do?