Can't get rid of a bold underscore line from my document

[Polly]

While typing a bold full-length underscore-type of line appears in the
document. I cannot remove it or even get the cursor to rest on that self
created line.

Thanks,

 

[grammatim]

Try Format > Borders & Shading.

 

[Suzanne S. Barnhill]

For cause, cure, and prevention, see
http://word.mvps.org/FAQs/Formatting/CantGetRidOfLine.htm