I go to school, turn on my wireless network and the windows network manager tells me ive got 6 networks available, each one i know to be an airport extreme in each of the labs near me. I want to connect to the internet there, but when I do the status stays at aquiring network address, and if im connecting to a specific network manually, the progress box tells me it is "waiting for the network". Is there any way to get it to connect to the airports?