Sorry for intruding, I haven't been following the thread that closely, but... I will say I had what sounds exactly like the same problem with my iceBook G4. Finally, I took it to an Apple Store. The Genius popped off the keyboard, took one look at the connection between the card and the antenna, and announced that this was one of the most common problems he saw with the AirPort. Thankfully, it was also one of the easiest to fix. Apparently, when you insert the antenna into the card, you *really* need to press hard to get it fully into the socket. I thought the antenna was comfortably in its socket, but the Genius got it in there. He popped the card back in, restarted, and I had full reception. Dave, IIRC, you mentioned you had used the original AirPort card. I have not; so I don't know if the antenna connection is different. I would heartily recommend checking that out before going any further. If you're in the Twin Cities, stop by the Mall of America, or one of the others, and see if they can help you before trying to ship it back to Apple itself, where you'll be left without the 'book for a while. Cheers, Rich