I have an Airport Extreme Base Station, Airport Express, and a Linksys Router. I have one wireless PC and one wireless Powerbook connected to the base station. I have the Linksys router conencted to the Airport Base Station, and 1 PC and 1 iMac connected to the router. The iMac and PC can see each other's shared music. The Powerbook and Wireless PC can see each other's shared music and the AirPort Express's speaker output. How can I make it where all the devices see each other? I would suspect it has something to do with IP addresses being assigned by the router. Do I manually assigned IP addresses so that everyone belongs to the same subnet? My ultimate goal is to have every computer see the Airport Express and each other's music. Heh, confusing I know.