ok.......
i also have a laptop pc that i use for work,this laptop has wireless centrino doofa built in.
i used the laptop to search for the wireless network and it found it fine,connected to it fine but then when i load up internet explorer,i get a message saying i have no DSL connection.
so basically i know the modem works fine,it's just that there's no DSL signal comng into the modem (or however you word it

)
the problem is more to do with the BT socket i think,but i don't know how to test it