I can't figure out why this is the case. When I click on the AirPlay icon on my iPhone, my computer is the first option, with the Video icon, and Apple TV shows as the second option, but with the Audio icon. So it's not showing as allowing video at all. Playing a song to my ATV2 works fine. When I play a video, it just plays on the phone. Doesn't even send the audio to the ATV2. Any ideas why ATV2 isn't showing as a video option?