iPod Audiobook Chapters

I used to know the trick for displaying audiobooks in an organized fashion on my iPod. You removed "Audiobooks" from the main menu, then navigated through Genre > Audiobook instead. There you would see your books grouped nicely by author \ title.

Now I have a new iPod. The same books that appear organized on my old iPod do not appear that way on my new iPod. They are both Classics, the newer is 160 GB (PC, not Mac). On this device, under "Genre", I don't see my Audiobook Genre at all!

I'm pretty sure the files themselves are fine (Media Kind: "Audiobooks", Genre "Audiobook", etc...) because I can still view them correctly on the older iPod.

Any suggestion??

Many thanks!

Lindsay