Itouch 3rd gen. Recently updated to i0S5. itunes 10.5. All up to date. Recently synced itouch with my Macbook and all looked good except when I tried to play some music in my playlists. Some playlists do not play at all even though the songs are there. Some playlists do play. But I want all playlists to play. Have done a restore to no avail. Help please. Thanks. JT