Re: new monitor black borders
Make sure you're using a widescreen resolution. Widescreen monitors have a setting to stretch or not stretch. Look in your monitor's options (using the buttons on the monitor, not on your PC) and you'll probably find an option to stretch to full screen, stretch to aspect ratio, or to just display it pixel-for-pixel. What you want sounds like stretch to full screen, and what is happening sounds like stretch to aspect ratio (where if you have fullscreen resolutions, it displays bars on the side so it doesn't distort the picture when stretching it).