This occurs because buffer swapping of windows on different pipes must be synchronized explicitly by using the swap barrier. You must wire the genlock and Swap Ready cables. Another way to decrease the effect of asynchronized swapping is to place the window so that every pipe has the same graphics load. The pipes will then execute the buffer swapping more or less at the same time. Tiled Background Image Setting a large image as the background image will result in having a tile image displayed across the screens.
True o Create the background image in the xmp file format.
The fewer colors used in that image, the less impact it will have on the colormaps used by other applications. Select your background from the GUI background program.