I have been making presentations and saving them, but when they are re-opened
all of the text is off line and the text is no longer how it was originally
aligned. On the upper ruler, new "dark arrows" appear and I can not get rid
of them. They were not there when I make these presentations, but when the
file is saved and then reopened all of the text is off line and these markers
appear. What causes this and how can I remove them?

I thought I was good with PP, but I find out only when working with images
and not text.
Thank You,
Sean