It seems Word 2007 wants to force the page display into the upper left if
you are using anything less than ~75% zoom. If you click the Single Page
button on the View tab of the Ribbon it will center the page, but it will
also increase the zoom.
You might want to click the Office button, click Word Options - Resources &
use the Contact Us button to send feedback to MS.
HTH |:>)
Bob Jones
[MVP] Office:Mac