Apologies if this has been covered previously, but I was not able to search the forums and find an answer for this. I have a new iMac and am trying to airplay XBMC to my television using an apply tv 3rd gen. When I do this the picture comes in well (not perfect, but will touch on this later) but absolutely no sound whatsoever. I have confirmed that I can stream audio and video to the ATV using other programs and that works. Not sure if its related, but the volume keys on the iMac keyboard do not control the volume from within XBMC. Anyone have any tips to get this fixed? Any assistance would be greatly appreciated. About the picture, there is a black frame around the picture preventing it from being shown in true full screen. It appears as though there is a picture frame around the video. I tried adjusting the settings on the computer to fit resolution to Mac and also fit resolution to Apple TV and neither got rid of the box. Any ideas?