PROBLEM SOLVED! Turns out the regular Windows Update I did on April 9, 2025 was NOT the problem at all. Apparently I had updated the NVIDIA graphics driver days earlier and hadn't used Internet Explorer to access the cameras until immediately after that April 9, 2025 Windows Update. And being averse to software rollbacks, I did not want to do the Windows Update rollback or NIVIDA graphics driver rollback.
But there was the option to use the Disable Device for the NVIDIA graphics card I had installed on my computer (see wittaj's screen shot above for an example). I clicked on Disable Device and used the graphics gizmo built into the motherboard. Rebooted the computer and to my absolute amazement was then able to use Internet Explorer and not get those black screens where video should be visible.
I then went ahead and Enabled the NVIDIA graphics card since I need to use it with my computer system. I'm not going to do a graphics driver rollback at this time. I'll wait and see if the next NVIDIA graphics driver update fixes the current problem. If not, I know what I need to do. And then I won't ever do another NVIDIA graphics driver update again. Don't fix what isn't broke . . . how many times do we hear that around here?
Many thanks, wittaj.
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