> I tried this same "new" AirPort card on all three iBooks, and the > results > are the same: the new card is selectively blind towards the AirPort > Base, > but sees the cards of the other two iBooks (if a network is created). > Of > course, the other two cards regularly see the AirPort base. Only thing I can think of is to make sure you have the most recent AirPort software installed, and that the card has been updated to the most recent "firmware" for that model. Is it possible that you're using a level of encryption in the Base Station that the old card can't understand? BRIAN/bpearce at cloud9.net