dashed line turns into a solid line

[Guest]

I typed a line of dashes, then pressed "enter" and the line turned into a
solid line. Now I can't delete this solid line and it appears at the bottom
of every page.

How do I get rid of this line?

 

[Guest]

Borders | Shading and select none. To prevent this from occurring in the
future, go to Tools | AutoCorrect Options | AutoFormat As You Type | Deselect
Border Lines.