So I've been trying to get my iMac to play with Airplay and so far I've installed AirServer, AirMac, AirPlayer. And so far, all of them have the same symptom: No videos or songs will discover the iMac but pictures do perfectly fine. I've tested the AirPlay feature on an AppleTV and the iDevices stream perfectly well. BTW, I followed all the help instructions I've been able to find on Google (including the FAQ page from AirServer) and nothing works. Here's the hardware I'm running iMac (running Lion) iPad iPhone 4 Airport Extreme Thanks in advance.