When I apply bold to a word the whole document goes bold - ?

[mikisdad]

How do I stop this behaviour? I've looked in the obvious places but if
there's a check box somewhere or something I'm not recognising it.

 

[macropod]

See http://word.mvps.org/FAQs/Formatting/WholeDocumentReformatted.htm.

 

[mikisdad]

Many thanks.