Maybe you have "Hide White Space" going on?
Open your normal.dot(m) template from within Word (differently
depending on your version of Word), move your cursor to the tiny space
just above the page that's showing (the cursor turns into a sort of
waffle iron), and click or double-click (depending on version of
Word).
(Just to be sure Word understands that you've made a change in the
template, type something and delete it.)
Save and close the template.
(You can also use the "waffle iron" cursor in an ordinary document if
you want to show or hide the header area and top/bottom margins.)