When I try to change the dimensions, my tool bars gray out, and nothing happens
I could certainly be wrong, but I doubt that's related to an Office update. A graphics card driver update would be my guess.
Does SW respond to other commands after you've tried to start the Equations dialog without having to hit ESCAPE?
If SW isn't responsive, then the Equations dialog may be open but located off someplace.
Perhaps Mr. Schroeder's post will help: How Do I Find a Lost Dialog Box?
Updated driver, no luck
Tried to find the dialog box and it cannot be found
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