I have a RAT 9 wireless gaming mouse and the receiver isn't working?

The mouse itself seems fine, the light is still on and the battery is charged. But when I try to click the light on the receiver doesn't flash. The software is installed. It worked great for about a month or so, the receiver DID get dropped but on a carpeted floor.. surely it can't be that fragile? If anyone can help I'd really appreciate it :(