Okay....I've got 10 new Dell Optiplex 790. After initially setting them up and getting to desktop I add them to our domain.( I've done this through the wizard and just adding them manually).
I add some icons to the desktop of web sites our users need and also make sure MS Office icons are on the desktop. (Office was loaded at Dell).
When I log off and then back on or when the computer is restarted ALL of the icons disappear.