Hi all. I downloaded and installed : Zope-2.2.0b4 DCOracle-1.3.1b1 ZOracleDA-2.2.0b1 Oracle 8.1.6R2 All on RedHat6.1 kernel 2.2.12. Oracle and Zope running in the same machine, DCOracle test works fine, I can connect with sqlplus and OEM, Zope installed ZOracleDA without problems but when I make the connection, Zope crashs and reports "OCIEnvCreate failed". The string connection is like "user/password@SID" and works with DCOracle and sqlplus. The enviroment variables are all set (ORACLE_HOME, ORACLE_SID). Any idea ???. Pedro Vega