[quote user="Robert Martindale"] ROLLING AVID BACK TO 2020.12, USING V 11.4 OF DECKLINK DID GET THE MONITOR BACK [/quote] Is there a particular reason you need to use an old version? The problem is that the latest versions have changed the naming cconvention of the driver folders, used by Avid. Upto 12.4, this is not the case, but if you roll