Just a warning I know very little about networking stuff I have a PowerBook G4, DDR2 high resolution model, that connects to wifi perfectly at home on a WPA2 encrypted network with no problems. Whenever I take the PowerBook to school it won't connect to any of the networks. When I turn on my powerbook it brings up a window asking which network I would like to connect to. When I select the one I want the little wheel spins for a bit then says connection time out. These networks are open and have no password. If I try from the airport preference pane, by clicking the network from the drop down menu, it just goes back to saying select a network after a few seconds. The setup assistant was no help and the diagnostics asked me for a password for the network even though there isn't one. Are there any settings I can mess around with to get it to work? My iPad and iPhone have no problem connecting to the network.