Hi. Not sure where I should post this... Since I downloaded the new OS for my iPad, 9 and then 9.1, all the books and pdfs I add to Books on iTunes are grayed out, and the ones that were there before are gone. They are still on my iPad.. I uninstalled and reinstalled iTunes on my computer. I restarted my iPad (all suggestions I read online), but the books are still grayed out and I can't sync them to get them on my iPad.. I can click on Sync, but it talks about deleting what's on the iPad and moving them to the library. I'm new to this iPad, so I'd appreciate any help anyone can offer. Thanks.