problem inserting local characters ...

Hi,

I'm running PostGreSql 7.4.6 on SuSE 9.1. Everything as such is working 
fine. In order to import some data from an old system, I create an SQL 
script that does something like:

insert into prg_contacts values ('2005-02-22 13:45:36+01','NETHINKS 
Converter',NULL,NULL,'admin','s',
NULL,NULL,NULL,NULL,NULL,0,NULL,NULL,NULL,NULL,NULL,
NULL,'Anrede','Titel','Vorname',
NULL,'Firmenname','TelefonGeschäft','Faxnr',
'TelefonMobil','email@email.de',NULL,NULL,
'SMS-Pager','2.email@email.de','Firmenland','FirmenOrt',
'FirmenPLZ',NULL,'Firmenbundesland','Firmenstraße',
NULL,NULL,NULL,NULL,
NULL,NULL,NULL,NULL,
[..]

Trying to do this insert, I get an error on both the values 
"TelefonGeschäft" and "Firmenstraße":

FEHLER:  ungültige Byte-Sequenz für Kodierung »UNICODE«: 0xe165

(the 0xe165 differs between the two; the fields in question are regular 
type "text" fields)

Looks like I'm having some trouble with unicode encoding ... The 
characters I have are regular 8bit ASCII chars ... How can I fix this?

Help appreciated, -gg