I get the following 'USB Device Not Recognized' error:
Over time, I've actually run out of ports to plug this device into. After a few times doing this however, I noticed that if I plugged the Unifying receiver back into a previously installed port, it wouldn't work. For the first little while, I would take the mouse home with me which meant unplugging the Unifying receiver. I have a Logitech m525 mouse that I use at work (Win 7 32-bit).
