We have a 6 monitor (3x2) setup using AMD Radeon Eyefinity and want to use the 6 monitors as a Single Desktop Display to show presentations which include video. We can get it working at a resolution of 5700 x 2160. This resolution is huge and we're stretching out the video to cover the screens which degrades the quality of the video. How can we get all 6 monitors working as a single desktop at a more manageable resolution of around 1900x720?