Performing routine sync, checked Sync Music, which indicated over 5,000 songs, Pop-up states that in order to do this I have to remove and replace music on the iPod Touch because I can only sync to one library at a time. I only have one library. Now when I check box for Sync Music, it indicates zero songs. Library appears to be intact, but will not sync music to the IPod.
iPod touch
You can only sync with one computer/library. For some reason the iPod thinks the computer/library is a different one. To regain syncing wit the computer/library
Syncing to a "New" Computer or replacing a "crashed" Hard Drive: Apple Support Communities
If all the synced media like apps and music are already in the iTunes library of the new computer just backup to iTunes and restore from that backup.
iOS: Back up and restore your iOS device with iCloud or iTunes
when trying to sync library indicates zero songs
