@wstewkim The first thing I make sure of is that the projector is seen as a second display....meaning the laptop screen and the projector do NOT show the same things....some operating systems use terms like cloning and extending the screens....extending is what you want.<br><br>Once you have made sure the laptop and projector are not clones of each other then you can start OpenLP. Once OpenLP is completely started the projector should be showing the OpenLP logo....if the OpenLP logo is on the laptop screen, press the ESC key...it should go away....sometimes you have to press the TAB key and then the ESC key. Once you can see the OpenLP main window configure the display in settings so it uses the projector as the output display.<br><br>On Windows 10, I make sure to plug in the projector and power on the projector before starting the laptop....this way Windows remembers how I want my screens....displays are plug and play on Windows 10, but they are handled differently if you plug them in after Windows is up and running.