No wireless network found in range

Hi all.

My 12-year old nephew has a fairly new Toshiba laptop (with Vista) that used to connect successfully to my sister's wireless home network. They then played around with a Virgin Mobile broadband USB stick, and since then, he gets the message: "No wireless networks were found in range," even though all other computers in the house show the signal as "excellent."

I don't really know what I'm doing, but I can't see any obvious difference between his computer's network settings and those of the other computers (that can connect).

Their wireless router is a Netgear WGR614 (v7).

Would appreciate any help or advice.

Thanks

Cellphone 'sticks' work on a totally different frequency (1.3MHz I think) band than Wi-Fi... That Virgin Mobile stick will NOT work on anything but Virgin Mobile's 3g network. Yo will need a seperate WIFI USB adapter (either G or N depending on router)

Thanks for your reply.

The problem is that the Toshiba laptop will no longer connect to the wireless network at home. (We're not really concerned about using the Virgin network.)

Maybe the fact that the problem began around the time he tried to use the Virgin broadband stick was just a coincidence.