Steiner

In this pic my controller is connected but my computer can't find it. I also have the software installed. http://i484.photobucket.com/albums/rr210/zeroslackr/p1.jpg

I recently bought a microsoft xbox 360 wireless receiver for windows. It did not come with the software because i got it from ebay. I downloaded and installed the software from the microsoft website. The receiver can turn on, I can connect my controller, but my computer can't seem to find my controller. I am getting really frustrated now since I've spent many hours trying to get it to work but every time it fails.