Problems with danish letters?

Hei,

I have a problem with the danish letters æ, ø and å. This letters looks crazy in the inbox, and in the header of the mail (subject etc.). There are no problems in the body of the mail.

Can anybody help me?

When testing this PHP-script:

<? mail("dennis@demahost.dk", "Test of Æ ø Å", "Testing: Æ Ø Å", "MIME-Version: 1.0\r\nContent-Type: text/html; charset=iso-8859-1\r\nContent-Transfer-Encoding: 8bit\r\nFrom: Dennis Madsen <dennis@demaweb.dk>"); ?>

I get this message in my inbox: http://www.demaweb.dk/mail.jpg

Please help me.

Med venlig hilsen / Best regards Dennis Madsen