Tom I am trying to help you out and you could write with … a little more appreciative tone, really, you know …
And as much as I do know about studios for having personally setup lots of them, you are missing out on the complexity of computer systems.
So a little more kindness and do check out this post where I highlighted the fix for one of the issues I had. Related to multiple monitors.
If it can work for you, then great, if not, well, I tried. Being nice wins karma points 
.Sampletank 4 blank screen when editing - crashes Cubase - #7 by Antoine-B