I use a radpadz mousepad, and everything is good. however, I don't move my mouse SUPER fast, as many freaked out gamers and spazzes tend to do (that's a compliment, btw note that the optical eye only tracks at a certain number of times per second (don't have the number handy or memorized.... yet), so it's possible you're moving it faster than the opticaleye can track. but, a radpadz mousepad rules anyway