Oracle Database Discussions

I've recently installed Oracle 10.2.0.4 on RHEL-5 and everything works fine. Database(s) get created and all functions work normal.

However, whenever I use DBCA to create a new database on this installation, I recieve the following errors about 88% through the database creation:

ORA-01918: user 'SI-INFORMTN_SCHE' does not exist

I chose IGNORE.

Then, ORA-01918: user 'MA' does not exist

I chose IGNORE.

Then, I get ORA-01741: illegal zero-length identifier

As far as I know, I'm not doing anything different that I don't do on any other platform.
I am getting an error about an obsolete parameter, 'parallel performance tuning' (or something like that), but I didn't set it. It apparently is by default.

These are the options I chose during dbca db creation:

Configure the Datbaase with Enterprise Manager (default)
==> User Datbase Control for Database Management (default)

Database Components: Enterprise Manager Repository [SYSAUX] (default)

Custom Scripts (none) (default)

Standard Database Components:

Oracle JVM (default)
Oracle XML DB (default)
Oracle Intermedia (default)

Everything else is just normal stuff...

Any ideas? I've done internet searches on it, but couldn't find anything on these errors during DBCA database creation.

Thanks.

Ji Li