I think you may have hidden the white space above and below your doc. Let's find out. Immediately after opening Word, choose Print Layout view, choose Whole Page from zoom pull-down menu. If your doc looks clipped, place your cursor below the page and it will turn into something other than an arrow or I-bar. When you see the change, click. This will show hidden white space on your page. Go to 'File', 'Page Setup', adjust your margins to what you always want Word to open with then click the 'Default' button in lower-left corner. This should solve your problem.
One month ago I upgraded from Office 2000 to Office 2003. Everything was running smoothly up until about a week ago. All of a sudden, I noticed that when I started Word 2003, the opening blank document would look "clipped" in Print Layout view. By that I mean that it looked as though the top 25% of the page had been clipped off and the resulting page looked shorter. I've found that the only way to make it look normal is to select View > Header and Footer and then immediately close the Header and Footer toolbar. When I do that the page reverts to its normal layout.
Does anyone know why this is happening and how I can fix it?