Wireless mouse (Case Logic Model EW-600) will not work. Got this mouse from a friend. He never used it but he lost the user manual. It will not work when I plug the drive into the USB. It appears I need to sync the drive to the mouse. There is a button on the drive and two black buttons on the mouse. When I push the drive button a blue light starts to blink. Both units are within two to three inches of each other. I change the batteries twice.