Thank you, again, for the response! Yes, this brings back all (6) screens. Though, after the computer is shut down for any greater than approximately 5 minutes, the issue repeats itself (no MST hub monitors).
As a band-aid, with the computer off, I cycle power to the MST hub and all (6) screens come on once booted up. Given the computer is off, doesn’t this sound like an MST hub issue, rather than a motherboard/driver issue?
I appreciate all your help with this issue, though I am running out of time. May 30th is the deadline for me to return this unit.