Thanks for the suggestions. I tried both old sessions and a new one with no change(older sessions were created on a similar system with vertical arrayed screens). The screens on the last several systems I have had were all 1920x1080. 1920x1080 is the native resolution for both screens. I did try the re-size function on the 43". While things did change on the screen, it didn't solve the issue.
FWIW, my previous systems have all used at least 1 HD TV and nVidia graphics(although the current card is the first that is actually on the approved list from Avid). Previous rigs have used various GeForce cards(210, 610 and GT750 Ti(which is now in an HP Z820, rubbing 3 screens stacked and does not have the same issue)
