We are using the mix ouputs ( keystoned ) on a show at the moment and on the second output we are seeing about a 1 pixel wide line on the right edge of the screen that is not covered by the mix window. We have 2 outputs to projectors with mix 1 assigned to mix 1 and mix 2 assigened to mix 2. The resolution of the outputs is 1024 x 768. We are using 4.06 109 and also see it in the latest 4.10 119. The background is set to black in the mix options. For now I have covered the line on the right side of the screen with mix window 3. Have I missed something or is this a bug ?