Blank Desktop, No Wallpaper and right click on Ubuntu 13.10

Got my first error after upgrade to Ubuntu 13.10 (from 13.04) two days ago.

After a quite long search in google without any luck, this is what I do :

1. Run dconf-editor (via Dash | dconf-editor, or Terminal | type dconf-editor)
2. Click org
3. Click gnome
4. Click desktop
5. Click background
6. Click primary color
7. Click Set to Default
8. Click secondary color
9. Click Set to Default
10. Done

You will get your desktop, wallpaper and mouse right click again after that ;)