Wireless Connection broke?
 

When I first got my laptop the wireless connection was working fine and I'd be able to sit upstairs on it ect, but a few months ago the wireless just stopped working while I was on it, so I've been sitting downstairs with the laptop connected to the PC's internet connection.

Anyway, the Wireless adapter thing is working, it just seems that the laptop can't find it. Here's a screenshot of what it's saying:

http://i37.tinypic.com/2ppbqjr.png

I've tried diagnosing it and reinstalling the adapter but nothing has worked. So does anyone know how to fix it or anything?

wireless is notorious for going wrong