I am extremely stumped. I've been having this mouse problem for a long time even after I reformatted: When my memory usage is high, or when I play a game, my mouse begins to freeze for 1-2 seconds. These are things that I am SURE is working correctly: Mouse, keyboard, graphics card, memory, USB ports. I have seen many people with this problem, but they all said it went away after they bought a new mouse. I did the same thing and a couple months later the same problems started happening again. I'm not sure if this is normal but when I move my mouse, CPU usage increases by 10%.