My first experience with the Logitech Control Center wasn't very good with my V470, so I installed Steermouse. Then I bought the MX Revolution and I didn't even bother with Logitech and just used SteerMouse. Well my trial is up and I don't want to pay $20 and the scroll wheel wasn't functioning correctly so I unistalled SteerMouse and installed the Logitech Control Center. So I opened Logitech Control Center in preferences, but all I get is "No Logitech device found" What is wrong? This is why I don't like to use Logitech's software! Any help is appreciated, thanks.