Desktop screwed up.

[Aaron Konstam <akonstam sbcglobal net>]

Somehow I have screwed up my gnome desktop. I don't see the items in my
Desktop folder , I don't see my file folders for the computer of my home
folder , I have no Trash icon nor do I see mounted external devices.

Can someone tell me how to fix this situation in F11?

Finally I get nothing when I right click on thee desktop. How can I fix
that?