Ok. I'm having the same problem but in reverse! I got a linksys 5port switcher and have a graphite Airport feeding a signal to my Powerbook g4. I also have a direct line from the hub to my dual 867. Both machines are running OS 10.2. When I have both the airport and 867 plugged in only the Powerbook works but if I unplug the basestion the 867 works.

What's the deal here??

thanks