So, I've gotten two new 802.11n express's, replacing my old g/b ones, and I can set up a wireless network using one, and then I can tell the other one to extend the network, but it stays orange, saying that it's an unsecured network, and then when I secure it, the express stops showing up in the airport utility. It can no longer find it. Also, airtunes used to work, transmitting from the base express to my secondary express which was plugged into the sound system, and that no longer works. Why is this so difficult? I thought apple's stuff was easy to use. Thanks.