Hi. I am typing a document on word. Sometimes when I start a new chapter I make a line across the page using the underline key. However, if I then press the return key the line turns into a blacker line and I can't get rid of it. Several of those lines are now in my document, sometimes I don't know how they got there. I've tried deleting them manually, and I've tried using the "borders and shading" tool to get rid of them. Nothing works. Help.