I can see my music library but it won't sync anything except what I've downloaded since last upgrading my iTunes. I'm not quite sure what to do about it, but Apple ticks me off with it's "we'll do everything for you, except you'll never figure out what to do when there's a problem" software.
...I downgraded to iTunes 10, which I think I'll keep. I ended up having to rebuild my library, but it was much easier than continuing to bang my head against a wall and expecting a different result.
The contents of this post represent the views of the author. NDNation.com is not responsible for its contents.