PowerPoint 2016 Overlapping Font Issue - Century Gothic

Is Century Gothic installed on that machine?

If so, then check the printer driver. Yes, the printer driver. :-) It will affect display, too, believe it or not. You need to have a default printer specified, preferably a local driver.

Here's the description of the issue and the explanation of the fix along with links to set up a test printer driver. Although this refers to PPT 2007, the problem still exists. http://www.pptfaq.com/FAQ00850_PowerPoint_2007_text_editing_slow-_text_cut_off-_text_display_or_formatting_problems-_print-_crash_problems.htm

Test printer driver.

Here's more info about how to set up a LOCAL printer driver even without a printer installed.
http://www.pptfaq.com/FAQ00605_How_to_install_a_local_printer_driver.htm

http://www.pptfaq.com/FAQ00131_How_to_select_a_default_printer.htm

Windows update fixed the issue.