There might be another way of doing this, but this is the best way that I have found. I know this is an issue in Word 2007 not sure about 2010. Here are the steps you take:
- Click on the Show/Hide paragraph button to show paragraph marks.
- Select the paragraph mark on the extra page you want to remove.
- Change the font size to of the selected paragraph mark to 1.
- Click on the Show/Hide paragraph button to hide paragraph marks.
That should do it. Those extra pages can be really annoying, so I hope this helps.