Not sure what caused this (maybe the 10.5.5 update) but my Desktop Wallpaper settings are acting weird. First off there's two "Aperture Library" tree lists in the left column but I can only expand one of them. Second, I use to have a folder added called "Wallpapers". It's no longer listed and when I try to add it again it says it's already there. When I try to add a new folder it seems to go through but doesn't show up. Any ideas what's going on? Thanks. I tried running the Maintenance 3.8 automater script as well but still the same thing.