Well, last night, we used it on a desktop (which is also an acer and running win 7) and we were playing Skyrim. Then we switched it over to a laptop to play Overlord. Now it won't work on either computer. I've unplugged it and plugged it back in several times and even just let it sit there plugged in. It won't connect, but it registers that it's been plugged in because it does the initial light up when we plug it into the port.