I did that; I checked, and the drivers (or whatever logitech installs... is kind of an entire suite to configure any of their products!) are the latest. However, my logitech is not detected. Control panel opens ok.
Update: The problem with crasing when clicking the mouse in contrl panel is gone. Still, logitech cannot find my mouse. It seems to be using the default drivers. When I plug the wireless receptor into the usb port, it finds some hardware, installs something, but concludes that 'a problem has happened an your hardware is not installed correctly'.
Hmm...
Getting better, but not there yet...