Just got some great ColorSource Par's installed in our theatre and after installing them I've had two different Par's lose their DMX address. One of them is in a hard to reach place but the other was easily accessible. It had reset the DMX address back to zero or whatever the default is out of the box.
Currently I've got power turning on to them from a parked dimmer (thats been turned non dim in the dimmer rack) that switches on when I turn the light board on.
Any ideas?