Why can´t I see swedish characters when the sender use utf-8?

[gunsen]

Why can´t I see swedish characters when the sender use utf-8? I have
searched for settings in outlook but I can´t find any.

 

[gunsen]

More info from me since no one helped me yet . I have Outlook 2007, part
of english version Microsoft Office Enterprise 2007. 99 % of all incoming
mail are displayed correctly but one person sends me mail in utf-8 format ( I
don´t know why). When he writes the letters åäö (swedish) the characters are
not displayed in my Outlook, very irritating. I hope this could be configured
somewhere in Outlook. I have searched everywhere in Outlook but not succeded.

/gunsen