>Did you get this figured out?
>
>My ideas are:
>1) In the Tools|Options View tab, set the Formatting Marks to view All and maybe you will get a hint about what the line is. At least you may be able to remove it by selecting the symbol.
>
>2) Not real likely, but there might be a text box that was inserted and sized without much height. There would be an anchor icon somewhere on the page when view all is turned on if this was the case.

No, I haven't found it yet. I'll check for those points.