I have a Logitech cordless mouse with the base station attached to my MacBook Pro through USB. I can sometimes right-click, but I cannot use the mouse (move it around, etc.) I have tried re-connecting, unplugging and plugging in the USB, resetting the device, and power cycling the device, and none of this works. It works for a while usually, and then after a few minutes just doesn't work anymore. What's wrong?