I have been trying to figure out how in the world to run shows in LDS Pro that utilize multiple projectors. I have two Riya MultiBus Basic controllers but I don't know how to get each DAC sending a different signal. I have gone into the RIYA Test Program and can test each DAC individually and simultaneously without any problems. I'm running each DAC to a separate USB port on the computer. I have not seen any posts addressing this topic. Any help is greatly appreciated.