I followed the first two suggestions and don’t think I need the third. It seems to have resolved the issue.
The Nvidia drivers were all current as I am notified of updates and install them whenever available. I did a version check too.
However, when I moved on to reset the video drivers, I saw several parameter changes. I’m not sure which ones were reset, but upon restarting D3, there was no longer the white overlain window. I tried several times to be sure including a full reboot of the PC. The issue seems to be fixed.
Additionally, the fans on the video card are completely silent now, as they used to be originally. So that’s two problems solved in actuality.
I appreciate your help Ironthorne.
Thank you.