Today I did a fresh install on old 3GS which is now serving as an ipod and synced the playlist from itunes. Since I got 5s, for last couple of months I was mainly using that and had created a new playlist and also added new music to the library. Strangely, when I synced the new playlist with 3GS after reinstalling ios6, it doesn't let me seek only the new songs while playing the music. Old songs which were there in the old playlist and 3GS work fine. I have tried re-syncing and also adding songs individually instead syncing the playlist. But again, the issue with new songs, doesn't seek, when I drag on the seek bar, it starts playing from the beginning. Am I missing something here after reinstalling (authorization/permissions/account)? All the songs weren't bought from itunes and play perfectly fine on 5s.