This apparently is a bug. From the command line:fixes it and restores the wallpaper and desktop icons.$ fsdesktop
Gosh, my Mint is messed up, and I don't know how it happened. I need help.
I installed Mint+Xfce 14 and set it up: fonts, desktop image, etc. Then I rebooted and the desktop is black with no icons. The 'Menu' button seems to work.
Where do I start?
Thanks for your help - Mark.