Learned something new too! I knew there was a "
Disable hardware graphics acceleration" option in PPT. I even knew if you changed that setting in PPT, it automatically changed that same setting in Excel and Word too (at least that's how it works in Office 2016).
But what I didn't know was there is a separate disable hardware graphics acceleration setting specifically for "Slide Show"!
My guess (and to address DR M's question) as to why this is a separate setting is PPT presentations are often fed through a variety of video hardware via docking stations, large screen displays or directly to "projectors". Disabling this might help with possible compatibility issues.
Still not sure why this particular computer, and only that computer was affected. It might be interesting to know how it is used.
Anyway, always good to give "those little grey cells" something new to do.
