Are you using the NVidia Drivers as downloaded from the NVidia site or the drivers as installed by Microsoft. If the later, I would try and download the latest straight from NVidia and see if that makes a difference.
Thanks for the suggestion. I wasn’t sure if Windows had installed any drivers so I used the Display Driver Uninstaller utility to prep for a clean install of the latest from Nvidia as suggested.
After restarting that appears to have fixed whatever the issue was so I’d have to guess that Microsoft somehow broke the previously installed drivers with the OS update as I had this same driver version (381.65 r. 4/05/2017) already installed prior to updating.