Description of problem: The context-menu doesn't opens the window that changes the desktop background.
... it's the gnome desktop. -- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers
Uhm, that's because gnome-appearance-properties was removed from control-center. Apparently, in F14 it should reappear soonish, in F15 it will be replaced by something else. So for now reassigning to control-center. See: http://lists.fedoraproject.org/pipermail/devel/2010-August/140333.html
-- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers