My magic mouse suddenly stopped tracking on the mousepad I have been using for a month now. Everything about the mouse works (gestures, clicking, etc) except tracking. Strangely enough, the mouse tracks perfectly on my MacBook Pro's surface. I have checked the battery contacts, optics, and have replaced the batteries, to no avail. This issue only appeared after I updated to 10.8.2. The mouse only has issues tracking with non-reflective surfaces, everything else works as smoothly as before. Any help is much appreciated!