Doug, I fell so stupid. I extended the slideout, and, the box was right in my face.
Don't know what I was thinking.
The white, stranded ground wire was just barely making contact with the other ground wire. I loosened the wire nut, and, tightened them together. Outlet is working fine. You can edit your post, if you don't mind. It may not make me look so stupid. Experience is the best teacher. Thanks again, Garry