German "Umlaute" in OpenOffice

[Dietrich Bollmann <d.bollmann@tu-berlin.de>]

Hello :)

I would like to display a German Windows-Office document in OpenOffice - but
the "Umlaute" are not displayed.

I am not using a German locale - but some combination which should
(and unfortunately does not) enable Japanese input with English menues:

 printenv LANG LC_CTYPE LANGUAGE
 ja_JP.eucJP
 ja_JP.eucJP
 C

I tried the following:

 LANG=de_DE LC_CTYPE=de_DE LANGUAGE=de_DE oowriter
 LANG=de_DE.utf8 LC_CTYPE=de_DE.utf8 LANGUAGE=de_DE.utf8 oowriter
 LANG=de_DE.iso88591 LC_CTYPE=de_DE.iso88591 LANGUAGE=de_DE.iso88591 
oowriter

but no "Umlaute" are displayed.

Could this be related to some encoding / a wrong font / ???
and how could I make it work?

Thanks for your help, Dietrich