So I have Virtual Desktop and am using nvidia surround with 3 monitors. It works fine for me on the vive. The three screens just curve around you. The desktop viewer in steam does not…with surround enabled it just shows a green screen. The desktop viewer in vorpx also works…but it displays them as a wall instead of a curve…so the far left and right can be hard to see…still very functional though. Are you just trying to see your desktop or is there a specific app you are trying to run?