that sounds like a not-uncommon issue and it does have a simple workaround. Go to the View ribbon and tab to Draft View. In that view the down arrow will take you to the next page. The shortcut keystroke is ALT+w followed by e.
I've noticed many Google results for how to get MS Word to open documents in draft view by default, but I've never seen anybody get it to successfuly do that! It certainly doesn't work for me! The first action I do when opening a Word doc is to go to the View ribbon and switch to draft view.
Hope that helps,