Wireless Computer Help

[simmadown]

If there are any computer experts out there, I received a laptop for christmas & was trying to set up the wireless this weekend. I was at my brother in laws & he has high speed interenet set up with a wireless router. I couldn't access the internet at all. Tried for hours. It always said connected when I went to the the network settings for the wireless, but when I tried to access any website, it was a no go. We knew the wireless was up b/c my brother in law pulled out his work laptop & he was able to connect & surf. ANy suggestions on this.