Forgot to position the window.

src/main.cpp

@@ -144,6 +144,7 @@ int main(int argc, char *argv[]) {
   sf::RenderWindow presenter(*screen_mode,
       "Bezos Loves Slides", sf::Style::None, sf::State::Windowed);
 
+  presenter.setPosition({0,0});
   presenter.setFramerateLimit(FRAME_LIMIT);
   presenter.setVerticalSyncEnabled(VSYNC);