Installed X-plane 11 demo on new Dell Alienware Aurora with 34" monitor, when I double click executable, I get a black screen, I hear a muffled screen sound while screen is still black, then sound goes away. After about 20 seconds I can hear the engine running. When I ctrl-alt-delete to get to Task Manager, I can then see the cockpit, out the window, scenery, etc. If I click into the X-plane app, screen goes black again. Running Windows 10. Installed to Desktop. Help please! Thanks. Bob