Oracle ODBC problems

I am trying to connect to Oracle from Tamino.
I get the following error when I try to define the schema:

<ino:message ino:returnvalue=“8505”>
<ino:messagetext ino:code=“INOXME8505”>ODBC error occurred</ino:messagetext>
ino:messagelineState: IM004Native Error: 0 [Microsoft][ODBC Driver Manager] Driver’s SQLAllocHandle on SQL_HANDLE_ENV failed</ino:messageline>
I am testing on NT 4 with Oracle database permitted in the licence file. The ODBC connection is in the system DSN.I tried to add Oracle: but this didnt seem to help. I tested the ODCB connection from access and it seems to be working correctly.

Has anyone seen this error before?
Any help would be great.