Missing Desktop icons

[David]

On a recent update of Xfce (4.10) in Fedora Rawhide (to be Fedora 18) my
Home, Trash, and System icons, and their functions, disappeared. I still
have the config file that list them by name and show their location.
Several different configurations files actually. It is not a missing
icon problem. They are really gone.

Any suggestions on how to get them back would be greatly appreciated.
-- 

  David