Hello I'm new to madmapper and Garagecube, I've had success with the usb- DMX controller in getting LEDs working but I am stuck trying to do the same with Garagecube ArtNet to DMX controller in madmapper . Are there instructions, a manual or video anywhere that can help me please? I'm using a macbook pro running High Sierra vs 10.13.6. I really hope I haven't got my self an expensive paperweight! Thanks Antony.