I am trying to use an external mouse on my Compaq laptop. It used to work fine but now doesn't even recognize when I plug it into the usb ports. I have tried all 3 usb ports and none of them recognize it, the mouse works fine on other computers. I have already tried updating the drivers and they are all up to date and have plugged other usb port device into all 3 usb ports (keyboard) and they work fine for that. I am tired of using the touchpad and want my mouse back....any suggestions?