I have a MacBook Pro running Leopard, got it in January of this year. I am new to Mac. I am in an office that has multiple wireless networks. Most don't have any protection on them. They come and go. They are pretty inconsistent. The most consistent one was called linksys, so I set up my Airport Express to run on that network. Now linksys is gone and I am trying to set it up on another network. The Airport Express just blinks yellow. All I have is the Airport Express, no base station. The Airport Admin utility does not find it. I did a reset (i think, held the button ten seconds while it was plugged in) Under network prefs, it shows the AIRPORT EXPRESS, and says it is connected to the other network I chose since linksys is no longer available. In itunes, the little box that lets you choose computer or airport express is gone. Yes, I have checked the box "look for remote speakers" in itunes prefs. I have wasted an hour today (and many previous) dealing with this just so I can have wireless speakers - any advice PLEASE!!!! I have tried other solutions on this forum, nothing works. What am I doing wrong???