Thanks for the suggestion, but the problem doesn't seem to be that I can't find where the extra whitespace is. The problem is that it doesn't show on the designer at all, only when previewed or published does the whitespace crop up. If I delete (or temporarily cut) ALL the sections, only then does the whitespace rear its ugly head and can be removed, but after adding them all back in one by one, somehow the whitespace is introduced again...I may just have to leave it in there.