I have a 18.5 in westinghouse widescreen monitor, L1920nw. Whenever I play video games that don’t have widescreen resolutions they stretch to fit the screen. I’ve noticed that both my brother and a friend of mine when they play games on their laptops that are not widescreen resolutions the screen fits with black bars similar to watching non-hd channels on an hd tv how can I get this to occur on my computer