Operation Manual

Chapter 4: Settings
101
neither 4:3 or 16:9, select Other and then select another aspect
ratio from the drop-down menu.
Note: When in clone mode, the resolution of both monitors will be the same.
However, if the selected preferred monitor is 4:3 and the other monitor is
16:9, the video on the 16:9 monitor will be distorted. Therefore, the preferred
device should be set to secondary and the aspect ratio set to 16:9. The video
on the 4:3 monitor will be distorted, but the video on 16:9 monitor will be
correct.