Cannot remove shading and border

[Joe]

My son has changed something in work that creates a border and blue shading
in every new document. I can go in and change it in the current document,
but it show back up in any document. Has he changed the default settings?
How do I change it back to no border or shading?

Thanks

 

[Suzanne S. Barnhill]

See http://word.mvps.org/FAQs/AppErrors/BlankDocNotBlank.htm