I have one unsolvable problem with my intel iMac. It's the only real problem I have with any of my macs. Starting with 10.4.8, airport experiences random disconnects, where the airport menu bar icon goes gray, and no networks appear. Attempting to connect to my network under "Other..." results in a connection error and a "Try Again" message. Only a reset of the computer fixes this, and upon resetting the computer will connect automatically. I connect to an Airport Express. I have my network at the top of the preferred list, and I use WPA2 security. I refuse to compromise security by switching to WEP. The express assigns IP addresses via DHCP. It is not an express problem, as my PPC ibook stays connected. I am now running 10.4.9, and none of the airport security updates have fixed this problem. I am ready to chuck my 17" imac core duo. I cannot live with this problem, as constant resetting is not an option for me. This problem happens both after waking from sleep, and randomly while using the computer. This is a problem discussed on this forum constantly, and on Apple's support forums. I do not think Apple can solve this problem, and they refuse to acknowledge it. This is a serious problem, and a lot of people on this forum are experiencing it. I also need to be running 10.4.9, and I cannot revert back to 10.4.7, although I have tried via an archive and install to fix the problem. As soon as I put 10.4.8 on, and 10.4.9 with all the airport fixes, the problem comes back. Any airport experts out there? I am at my wits end.