Every once in a while my MX1000 will cause my mouse cursor to fly either to the left or top of my screen. I've tried it on a red mouse pad, a red/black mouse pad and my desk (IKEA Jerker) and the movements still won't stop doing this. It can't be the surface because my desk works just fine with my Apple optical mouse. And yes I've checked to see if the mouse is clean. Any suggestions? Thanks.