I'm a rookie when it comes to networking. I have a IMac G4 17inch 1GHZ, and just installed the Airport Extreme card. I have a new Dell Laptop using Windows XP. I have a cable modem connected directly into the IMac and want to connect the Dell Laptop wirelessly to the internet. I've read a ton of threads and followed the directions but with no luck. The Dell is reading that there is a connection but no luck connecting to the internet. Please help, thank-you. Also, once it I get it connected how do I share files between the two machines?