I have an SBS 2003 with 25 XP clients. A few users are reporting that their computers are slower than usual this morning. One user in particular said her computer is exceptionally slow. I have checked the computer and don't see anything out of the ordinary. Except, the computer is very slow and when I drag a window across the screen, it leaves trails like the old mouse trails used to do. I have attached a picture to clarify. Any ideas???