How to remove unwanted lines - I cannot even find how/where they are inserted!

[nickib]

Okay, I downloaded an adobe form from a website, converted it to a Word document and now want to edit it. The form has spaces for name, address, etc. SOMEHOW, SOMEWHERE there must be a command putting lines in certain places from the old form/formatting! I CANNOT, no matter what I do, get rid of these lines! I have even copied & pasted into a new document - they are still there. I have cleared formatting in the entire document - they are still there. I have looked at borders & shading - nothing. I have converted tables to text - they are still there. UGH! Does anyone know HOW I can remove these? I have attached the document so you can see what I mean. Thank you for any help!