2 Replies Latest reply on Mar 6, 2017 10:07 AM by David J Swift

    Dual monitors: LR windows going coo-coo

    David J Swift Level 1

      I have two Viewsonic 4k monitors and Mac Pro. It's worked fine for a year.

       

      Today the secondary display on Monitor 2 started arbitrarily jumping to Monitor 1, vanishing the primary display. This annoyance comes and goes rapidly. I can't make heads or tails of it. I can't get any work done.

       

      I trashed Prefs. I fiddled with System Prefs -> Displays. Reboots etc.

       

      Any ideas on what to do next?