Ok, this is a minor annoyance that I have been dealing with lately. I have the latest iMac running the latest version of Leopard. My iMac normally connects wirelessly to my Airport Extreme Basestation automatically. However, I have to connect manually if I turn the iMac on first and the basestation on second. What makes this worse, is that my XP laptop connects automatically! I am using WPA2 Personal as security and I have created a closed network.