There is a possible bug in the setup menu. Because if you activate any of the setup parameters and then turn the wheel to the left or right then the value is changed down/up. Activate = click on the parameter with the mouse. And its even enough if the wheel is stationary but turned slightly to L/R. And no I havent double mapped my wheel to both wheel and raise/lower values. ByTheWay: Eventhough I think its Reiza that have caused this then I know enough about computers to understand that there could be other reasons. Like an unknown alien hovering above my chimney interfering with AMS2..