I hope someone here can help me. I have iTunes on my both my home and work PCs. I purchased a song on work iTunes yesterday but it hadn't synced to my phone, so I ran a full sync with all music. I got a warning that the iPhone was previously synced with home iTunes - it would delete everything and re-sync everything on work iTunes. OK, that's fine. All the music is there anyway. So I sync, and all my music is deleted from the iPhone, but almost nothing is uploaded. Work iTunes will only sync 1 album (already owned and uploaded, like most music on my iTunes), and 3 individual tracks i have purchased through iTunes. The other 430 odd songs it is ignoring. I have tried rebooting the computer and replugging in the iPhone. I have tried putting all tracks into a playlist and syncing that. I have tried restoring the factory setttings to the iPhone. I have tried downloading a new version of iTunes (v10.4). I'm still only getting the same 15 tracks. I am on software v4.3.5 Help! What can else can I do?