http://bugs.winehq.org/show_bug.cgi?id=58140
--- Comment #13 from Hans Leidekker hans@meelstraat.net --- (In reply to Heiko Rabe from comment #12)
Created attachment 78433 [details] trace log with WINEDEBUG=+odbc,+reg
Attached the trace log with the requested WINEDEBUG=+odbc,+reg config.
I see driver names PostgreSQL_ANSI PostgreSQL_Unicode (with underscore). They must match the name in the data source but the one you posted earlier didn't have an underscore. Can you make sure they match and try again?