Problems using screen saver slideshow

I have a selection of travel pictures which I use as screensaver on my Apple TV. After the last ATV software upgrade an annoying black window appears on the screen along with the slideshow asking me to select an Airplay source (choose 1 for my LAN or 2 for Apple TV) It , of course, essentially ruins the picture show. I have been unable to turn it off and it is driving me nuts. Any suggestions?