I was just given a PowerMac G4 450 single processor. The G4 does not have an Airport card. I just got DSL through Qwest and would like to have wireless capabilties for when I use the iBook that I bring home from work occasionally. When I am asked to start to configure the Powermac's wireless settings from the Qwest directions it asks me to click on the Airport icon, which does not appear. I can find the "AirPort Setup Assistant" in Utilities, but it won't allow me to install it unless I have an Airport card. Can I have wireless capablities without the card? It seems as though I will need to by the card to finish the configuration. I am willing to buy a card, but would rather not if I can get by without it. I am confused as to what the function of the Airport card is.