I have my Mac, wireless internet, an AirPort Express & Apple TV. I have speakers plugged into my AirPort Express and I have my Apple TV set up. I want to be able to play music through my Airport Express & Apple TV at the same time, but I can only do 1 or the other. So if I listen to Apple TV I choose my normal internet connection on my computer or if I want to listen to my Airport Express speakers I choose 'AirPort Express' from my internet connection. What I have I done wrong? HELP?? Oh and my AirPort Express light flashes orange which means something is up.