I've tried on two different monitors, and the best I can do is widescreen that will fill about 75% of the screen. It leaves darkness all the way around the edges. On my 19" widescreen monitor that means I have about 2-3" around every edge that is wasted. Not only that, but on this particular monitor the display comes out with lots of "noise" that creates random dots of color all over the screen. I am using a mac dongle to an hdmi cable..