Are these Mac or windows systems where you are not seeing the text?
Have you tried changing the text to a different font on the computers where you can't see the text?
These are Mac systems.
I did not try to do anything with the font type on the person's computer just mine. Whenever I do anything thus far to change the text on the person's computer the text disappears. (I'm not even sure it was even there to begin with for that person.) This seems to be the case because text box gets smaller like there isn't text in it (where it auto-resizes).
On Macs, there are Font Caches (remember font metrics for faster display) that can become corrupt.
There are several utilities that will delete the Font Caches - there are System Caches, User Caches, and sometimes Application Caches.
Thank you David
It was the Arial Font that was corrupt. Also, thank you for the Font Cache suggestion.