this seems to have happened after a recent loss of all music/videos/photos.
I had 2 different sets of folders that showed the same pics.
I deleted them with an iTunes sync, and I can't sync them back.
The 'sync' process stalls, but keeps running when it gets to the 'photo' section.
I used Boss Tools to change my disk allocation, and some have suggested that this may be the problem.
any ideas?