Blinking cursor mark

[scrcrow]

I have been using Word for awhile now and the 'blinking cursor mark' just
before where I type has always been a thin vertical line. Now its a shorter,
wider line. I know this is really a small thing, but I get distracted by it
and would like the original thin, taller line back. Can anyone give me a hand
here?

 

[Suzanne S. Barnhill]

Nobody seems to know what causes this, but most users find that switching to
500% Zoom and back fixes it (at least temporarily).