Hi. When I VJ at venues with large projectors and screens the video output almost looks like night vision with a side ways Face book sideways French flag streak or overlay effect. The out put displays fine at home on a flat screen or my small mini projector. What is the likely cause and how can I fix it. I am using the latest Serato DJ with a Pioneer DDJ SX controller on a mid 2012 Mac Book pro with a Nvidia Video card.