it's probably not this simple but right click on the deskop, arrange icons by,and see if show desktop icons has a checkmark.
I installed Microsoft's SP2 on on my computer (Dell 8200) and everything went smoothly and I've seen no problems yet. Then I installed it on my husbands computer (Dell XPS). It seemed to install properly but after the reboot there are no icons. Our two computers are networked, with mine being the host. Also both computers have had regular updates and I run the anti-virus programs every two weeks. Could someone give me some suggestions please? thank you.