I had the same problem. You can try solving the problem the way I did.

First make sure it's plugged in, if it is shout at it very loudly, if that don't work, try to punish it a little bit. I like to give it a few quick whacks with my keyboard. If that don't work simply unplug it, swing it around your head by the cable and trow it as far as you can, opening a window before the actuall throw might me a good idea. Then buy a new one. Using these methods you might find that you will have to test you keyboard the same way very soon, so when your out buying a new mouse, get a keyboard as well.