When i'm in WindowsXP. My Microsoft IntelliMouse Explorer suddenly loses its "Pointer Speed", and become really slow. This happens all of a sudden. Everything is perfect and suddenly for no reason at random times, the mouse slows down. I open mouse settings to see the pointer speed... but its still set in the middle to normal pace how i usually like it. I have to reboot and the mouse goes back to normal... Is there anyway of preventing this???????????