I have the latest gen ipod touch and I had to restore my ipod back to factory settings. Now, when I sync my ipod, the photos sync but my music, videos and apps won’t sync! I’ve had problems with my ipod but nothing like this before :S Everything is still in my library, the boxes next to them are ticked to be synced but they just won’t. I’ve tried to authorize my computer for the apps but there was an unknown error (-42408).

Have you tried a hard reset? Hold the top and the front button at the same time until the apple logo appears… then connect to itunes again