Question : Vista laptop won't connect to wireless network

We have a wireless router, and several laptops in the house. All can connect without any problem except for one of them.
The user can see the network under "Connect to a network". When he selects it, it prompts for the WEP key, but then when it attempts to connect it fails and the network disappears from the list of networks available (until a refresh).

It's not a range issue, and we've updated the drivers for his NIC. Any suggestions?

Thanks very much!

Answer : Vista laptop won't connect to wireless network

rollback the wireless driver, test it  then update the driver restart. will it connect to other wireless signals?