iPod Touch 2nd Generation won't sync photos anymore

Hi all,

My iPod Touch 2nd generation is running OS 3.1.2 on iTunes 9.0.2, Mac OS 10.6.1. It recently automatically removed all the photos from my iPod Touch and won't let me sync them anymore. I go to the Photos tab on iTunes and the albums/events I want to sync are selected, but when I hit the sync button, I can read the status on the iTunes window stating it's syncing music, then contacts, then whatever, and when it comes to photos, it just flashes "syncing photos" for a millisecond and keeps on going. No error messages, nothing. At the end, no photos are on my iPod and the memory status bar on iTunes shows I have a certain GB of music, apps, other, but no photos.

I've tried to sync all everything from iPhoto just to give it a try, with no luck.

Any ideas?

I've tried to restore my iPod, it works for the first sync, but when I connect the iPod the second time, it removes all the photos again.

Thanks

Tadeu