I have a Lenovo G700 laptop running Windows 8.1. It has three USB ports--one on the left side (where my printer is plugged in) and two on the right. My wireless mouse died last week, so yesterday I bought a replacement. When I tried to use the mouse (for which I use one of the two right-hand ports)' it wouldn't connect. I tried the other right-hand port--still no (good) luck. When I tried plugging the printer into either of these ports, the printer didn't work until it was plugged in on the left. Also, I didn't (from any port) get the standard Windows alert tones when I plugged in or un-plugged either the mouse transmitter or the printer on the machine. The ports appear to be in good physical shape, so if there is a physical problem it's inside. I'm not sure exactly what to do if it's a sotware problem--I'd rather not go through the hassle of refreshing my machine if I don't have to, but I can (as a last resort) if it's necessary.
Thanks in advance for any help or advice you can give me.