As a follow up to this post I update my personality file (that was missing rotate mix) but that has not resolved the problem. I can rotate the image in the mix in the same way you can change the offset of the image but I can not rotate the mix points. It is listed under keystone options but I can't seem to find any documentation as to how to get to this value through DMX.

So if anyone knows that would be a great help.
Cheers
Steve