I'm trying to troubleshoot this from afar, so any and all suggestions will be helpful. My dad has a 800 MHz, 15" iMac G4. The Airport update came up on Software Update the other day and he told it to install. As far as I can gather, the update went okay and my parents told thing computer to restart. (I don't recall having to do that here when I applied this update recently.) Anyway, upon restart the startup hangs at the Login Window starting phase, though the other things seem to have gone okay. I had my mom clear the PRAM and this had no effect. I also had her try firing up in Firewire Target Disk Mode and that seemed to have worked. The icon came up, but another Mac wasn't connected to the iMac to actually transfer a file. So, I'm a bit at a loss from afar to suggest something else to try. Any suggestions?