AssadC 0 Newbie Poster

Something weird just happened to my system. I have windows XP service pack 2, and for some reason all it does when it boots up is loads the desktop with no start menu or any icons. This is the same in safe mode and you can see the task manager when you do CTRL+ALT+DEL. You cannot see anything else. With my system settings the screen saver comes on after 5 minutes and that is actually happening. Can anybody help on getting this back and using the system?