Can't export diagram to EPS file

Hi all!

I'm using Ubuntu 8.10 (Umbrello 2.14). On my laptop I have the problem
that I can't export a diagram to a eps file.
Everytime I try to do this, I get the german message "Beim Exportieren
des Bildes ist ein Fehler aufgetreten: Beim speichern des Diagramms
in /somepath/somefilename.eps ist ein Problem aufgetreten".
Which means more or less "A error appeared during export of the image: A problem
appeared during saving of the diagram to /somepath/somefilename.eps".

Afterwards, the file is created but seems to have invalid content.

I'm wondering, because on another PC with the same Umbrello version
(also Ubuntu 8.10) it works.

Any clues?

Cheers
Timo

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