Okay, so my iPod's wi-fi was working fine, but yesterday I downloaded iOS 4.0 software update. The network isn't working now, well it is, because it's working fine on my laptop. But when I go to Facebook or Youtube on my iPod it doesn't connect even when I'm next to my Lynksys Router. We don't have a security code or anything on the router, so I don't know what happened? It even shows up as 3 bars when I go onto Facebook, but yet no connection? Any Help?