The AirPort software on my PowerBook has been acting up the last week or so. It will sometimes see the network at work, but often it won't and those times it does, it will only connect about 20% of the time while giving me a "There was an error joining the selected AirPort network." message the other 80% of the time. However, it still auto-detects and joins my Linksys network at home flawlessly. Also, all the other AirPort-enabled Macs here see the network and connect just fine. I just recently re-formatted my HD, re-installed Panther and updated to 10.3.1.