Hi,
well, I already set it to AutoDetect. I assume it may concerns the communication with the oracle api (oci.dll, oracle client 9.2.0.1 with patch set 9.2.0.4, odbc 9.2.0.5.4). As far as i know this is the most recent version. It seems that Oracle fixed their problems with unicode, because tools like toad, informatica don't have any problems anymore.
thanks,
Matthias