I have found a strange behaviour of the CSS validator. I have checked both
the FAQ and reported problems, but I can not find the it mentioned.

I have a page (http://eple.hib.no/~bki/css_p.xhtml) which generates the error.

Now to the problem:

* If a capital Norwegian letter (ÆØÅ) is the last letter of a paragraph,
  the validator complains with the error message:
    'The element type "p" must be terminated by the matching end-tag.'

* If I put another letter (including small norwegian letters æøå) at the
  end of the paragraph, then the page validates.

* The html validator does not complain.

* The web server is set up to give out the correct headers in accordance with
  ISO-8859-1 which I use.

* If I put back the <?xml version="1.0" encoding="ISO-8859-1"?> the page
  validates.

This is not a big problem though since I usually do not end paragraphs with
capital Norwegian letters.