I have rented 4 Chauvet Colorbank LED lights for a production I am directing and lighting and they look fantastic, but the problem I keep running into with them is that they periodically flicker. It looks like lighting when it happens. The guy I rented them from and I have tried everything to fix the problem and it just doesn't seem to go away. The lights work in stand alone mode, but when you put them into dimmer mode they freak out. With a newer board it happens less frequently, but it still flickers. Also when we add the third color they go crazy too. With any combination of two colors they flicker intermitently. Some of the possible solutions we came up with were: -Use a newer lighting board (the one we have is older and possibly does not have a high enough refresh rate) -Check/replace all the cables for damage Can anyone offer some wisdom on this matter? How do I get them to stop blinking?