Question, lets say my pc with compu ware goes bad during a show. If I switch my Vizi LEd Moving heads to sound only, will they still honor the x/y I had set with the software.

Or will they go all over the place?

Hey Jerry. Sound only means just that, sound only. Unfortunately your fixtures will not recognize ANY DMX values if the whole fixture is in sound active mode. Hope this helps. Let me know if you have any other questions.
Sincerely,

Would there be anything that I could do or set the would keep the lights from going all over the place?

Hey Jerry. The only thing that can help is if the fixtures and/or the interface has a hold function. Meaning on compu if the interface looses connection it will hold the last dmx value it received until the interface is either unplugged or the software is relaunched. Some fixtures have the ability to also hold the last dmx command they receive in case of a data break. Make sense?
Sincerely,