I want to replace the text "ABCD" with "xyz" in my entire document. When I do
that it replace with "XYZ" in caps. What am I doing wrong.

When I am editing some documents I received from others, I always end up
with an blank page at the end which I cant get rid off though its empty. But
if I shorten the page margins, the empty page does goes away but it messes up
the formatting of the pages above. How can I delete these empty pages.

What is the "Show/Hide paragraph marks" (ctrl+*) used for and what is the
reall use of formatting characters.