1. Mouse jitters (jumps forward and back) as you move it through a game ? This occurs in some games because Windows 8.1 handles the games' checks for the mouse status differently.
2. Mouse movement is not to scale even after acceleration is turned off ? If you have turned off acceleration to make the distance on the screen match the distance you move the mouse, that may not work correctly anymore.
3. Measured mouse Polling Rate has a lower reporting frequency than expected ? If you have a gaming mouse that has a high frequency, when you test it, you may find it is reporting a lower frequency than you expect.
