I have two Macs (and a PC, but that's connected via ethernet, so it's omit - thank god), an iMac G4 800 and a Mac mini. The Mac mini has an AirPort Extreme card, running Tiger. The iMac has a non-Extreme AirPort card, running Panther. I have an AirPort Extreme basestation, and I decided to set it up with WPA2 thanks to the latest update. It works perfectly on the Mac mini, but when I tried to enter the network with the iMac, I get an dialog saying something like "encription not supported by network xxx" with a "Try again" and "Ok". Can anyone help? Edited to add: yes, I do have the Panther machine AirPort software updated to 4.2. WPA2 Personal and WPA2 Enterprise does show up in the "Other..." dialog Encryption menu. 2nd edit: I did some searching, and turns out older, non-Extreme AirPort cards doesn't support WPA2. But it says to set my AirPort to be WPA and WPA2. It's already set as that, and when I tried WPA Personal (not WPA2 Personal), it gives me the same error - encryption not supported on the network. What gives???