Personally, i prefer the downsides that come with running at double refresh rate over the downsides that come with line doubling (or even worse, having 3D elements rendering at twice the resolution of prerendered 2D/background elements)You shouldn't be using those resolutions anyway. They're double refresh rate, meaning you get a double scan effect on 60fps games. Go to TestUFO.com at 120hz then 60hz and notice how clear the 60fps UFO is at 60hz.