Dom try another really large one but with the output set to .bmp as far as I can tell the .bmp looks the same as any other output format, but it doesn't cause memory problems. I got that tip from eon when I wrote to them about rendering large. the other thing they suggested was disable decimated mesh previews and background draw thread to keep memory usage reasonable. Let me know if that changes things for you. It did for me! Love esther

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