"Photos" has disappeared from Shared Computer menu

All of a sudden I am unable to view any photos from my iMac on my 3rd Gen Apple TV. It had been working just fine, even after the conversion to Photos from iPhoto. I have all my photos selected to share in iTunes, but there is no longer a Photo option when I go to the My Computer menu on the Apple TV. I've restarted the Apple TV, restarted my iMac, deselected then reselected share photos, etc... Any ideas? Thanks.

rtvman