my apple mac will not show dvd on apple tv
can anyone help please i am having trouble with my apple tv to play dvd on apple tv when i put dvd in it plays but when i go to the apple icon at the top i just get a black and white screen this used to work but for some resaon its not working i have tryed reset apple tv please help as this is getting to me now
Apple TV (3rd generation), OS X Mountain Lion (10.8.2)