Font problem

[Jordi Rovira i Bonet <igurnebli users sourceforge net>]

Hello,

    I've installed Dia, on my Debian Potato system. It's the .DEB
    package from Debian itself (version 0.86). It works ok, except of a
    problem with the fonts.
    It doesn't find the Courier*, Helvetic* fonts and it complaint abotu
    it whe trying to draw a text object (or an UML class). If I use the
    font "Palatino" it founds it, but most shapes use Courier as default
    and i can't change them.

    How can i fix this?
    Where does Dia look for the fonts? Other X applications don't
    complain when using courier, etc...
    Can i change the UML shapes to use Palatino font so i can get by?

Thanks