OpenServer 5.0 / Informix password bug?

Greetings -- SCO OpenServer 5.0 DB-Access Version 7.20.UC5 Windows 95 ODBC 3.0.23.1 (shouldn't matter?) Can anyone explain the following behavior? --- 1) ODBC to Informix works find with user "jhannah", password "1stPW". 2) Telnet to OpenServer, change passwd jhannah to "DifferentPW". 3) ODBC to Informix errors: [Informix][sqlinfmx.dll] SQL Error (-952): User's password is not correct for the database server. 4) (ODBC with old password gives the same error -- as expected) Shut down oninit, start it back up. 5) ODBC to Informix gives the same error. 6) Hmmm... Reboot OpenServer. 7) ODBC to Informix gives the same error. 8) Telnet to OpenServer, change passwd jhannah back to "1stPW". 9) ODBC to Informix works fine. -- Is this a bug? Can I *never* change passwords on users I want to be able to use ODBC? Perplexed, Jay