what skin do you use? if you used nonafo before and another skin now please make sure to disable the weatherOverlay plugin in the plugins section of the Mediaportal Configuration Tool...
Thank you, that solved the issue for me. I used nonafo on my LCD widescreen and when moving to a 4:3 monitor, I changed skin and it was unable to draw it (void StartScene() directx error or something like that, and no screen showed up). Just had to disable the WeatherOverlay, I half figured it out myself when the log said that the WeatherOverlay plugin was unable to initialize and unable to find a location to draw itself.