MY USB mouse was not working properly so, thinking it was just an old mouse, I got a new one. However, the new one is doing the same things. Sometimes I have to click it repeatedly to get it to work and sometimes it will highlight and sometimes it won't. I have run the troubleshooter, and it tells me the driver is current and the device is working properly. I also plugged it into a different USB port, but that hasn't made any difference. Anyone have a clue what the problem is?