I just had my Powerbook Aluminium 17" repaired, replacing the optical drive. However, they had a lot of trouble closing the case, and I think that either the airport card is now unserviceable, or the connecting cable is damaged, or the cable just isn't plugged in properly. I use an Airport Express Unit between my computer and the modem. Is there any external device I can buy that will connect me to the Airport Express Unit, thus circumventing the problem of checking out the inbuilt card. I know it must be crook as it is not shown on System Profiler, yet I can connect from the ethernet port to the modem and everything works. The trouble with doing that as a permanent solution is that the printer connects to that port, and the computer lives on the other side of the room to the modem. The Airport Express works, as it is connected to my secondary computer which I'm using now. If anyone has an elegant solution which an old person with limited technical capabilities can purchase, please let me know. I'm very hesitant about opening the laptop up again, as I it's old and fragile. The machine I am having trouble with is a 17" G4 Titanium PPC. I run 10.4.11, the Mac is a 1.5GHZ PPC G4, with 2GB DDR SD RAM.