I have a composition set to be free running that covers the full with of a two projector edge blended display. Both projectors are run by the same computer running v5.1 under Windows 7/64. When the composition is set to free running only the first output renders, the other remains dark. As soon as the composition is set to normal the problem goes away. The preview window on the production machine displays correctly. I'm afraid I'm at a loss for what to do.
Jim