When I install my airport card into my Powerbook G4, it will not boot up.
Instead all I see is a message telling me that I must restart the computer.
Once I restart I just get the same message. If I remove the airport card,
all is well. Both the card and the Powerbook are brand new as of yesterday.

While it looks to me as if there is something wrong with either the card or
the computer, I wonder if anyone else has encountered this problem and can
shed any light on it. Perhaps there is something I can try before I return
the equipment to the store?

Thanks