@MikeFontenot,
I learned to pronounce Latin back when that was the language of the Roman
Catholic liturgy. The text I saw in those days used accent marks but not
macrons. I cannot remember ever having been taught the difference in
pronunciation between long and short vowels. I just mimicked what I heard.
In high school and college I received more formal instruction in Latin, both
Classic and Ecclesiastic. Perhaps I was taught the difference then, but I
can't remember.
The Latin I read and write now does not use macrons (or accent marks for
that matter) but, of course, I see them in Latin dictionaries.
I haven't a clue about Mac laptops.