I'm having the same problem with books not showing up when I have my iPod docked to my computer, an older desktop Mac running 10.4.11, with the newest iTunes update for that OS. There is a books tab, but when I click it, I just get the spinning beachball forever and ever. The books that are already loaded in the iPod are not removed when I synch, but I cannot add/change what is there, unless I change the genre of the material to "music," instead of "audiobook." Most of my audiobooks were ripped from CDs, not purchased downloads, but those don't seem to work, either. My hard drive is NOT overly full (about 60%). My iTunes library is around 100 GB +/-. Not terribly huge. All of the books show up fine in iTunes, and all of the playlists I have made of them are still there; it's getting them into/out of the iPods that seems to be the problem. I have tried with several different iPods of different generations since doing this iTunes update...and none of them work right with the books. I consider the update a personal disaster! No, Terry, you're NOT the only one! Carol