No message file (PO7.2.2)

Hi!

We have an installation of Personal Oracle7 (release 7.2.2.3.1) on a standalone PC
for demo-purposes. Our problem is that whenever an ORA-error on this installation
occur we can't get the error message, instead we get something like

"Message XXX not found. No message file for product =RDBMS72,facility=ORA".

What can be the problem and how do we solve it?

Thanks!

Leif

-- 
Leif Iversen
IFS Norge AS
mailto:leif.ingar.iversen_at_osl.ifsab.se