I have two new mice. Both are MX 1000. One is a bluetooth version, the other is RF. Neither one work completely. One does everything except the forward and back. The other does everything except the expose function. I have USB Overdrive and Controller Mate. I do not know how to use either one. I am lost with Controller Mate, but USB Overdrive seems simple, but the settings aren't working for the mouse. Any advise? BTW, with the bluetooth version, I'm using the internal BT card. Not the supplied dongle.