I apologize in advance for my ineptitude. I recently got an iMac G5 from a coworker and decided to give wireless internet a try. Installed an airport extreme card and a linksys wireless G wrt54g2 router. The router is hooked to my dsl modem with an Ethernet cable to the back of a windows based pc. Set up seemed to go well as my iPhone picked up the network right away. But my mac positioned about 15ft. above the router won't find a network. Everytime I either put the name and password of the network or search for the network it reads "connection timeout." Tried linksys tech support which was a 2 hour long , three technician nightmare. I am at a loss. Any suggestions corrections?