I have 2 computers. 1 is a G5 (see signature) and the other one is a g4 (see signature). I have bought 2 airport extreme cards and an airport express base station. I have installed all 2 airport extreme into both machines. And I have managed to connect my g4 to the airport express and from there to the adsl modem and into the internet. But my G5 refuses to recognise that airport express base station. What can I do? I open airport setup assistant and it says that it fails to see any airport base stations in range. The range between my g5 and the airport card is 3 meters only. Also, my airport extreme card hasn't any problems because it is recognizable by system profiler. What can I do? Am I missing something? I want to connnect my 2 computers with my airport express base station and share my internet connection. I have all the required equipment but I have all these problems I mentioned! Please help!