New netbook problems

Our digital signage screen was driven by a netbook but when it recently stopped working, we replaced it. The new one is an Android system and although we have (finally) managed to connect the two, the TV screen is not running a playlist, just a screenshot of whatever is on the new netbook. Is there something I need to do to get it to play the playlist and is any of this because it’s an Android netbook and not standard Windows? All help would be much appreciated. Thank you