DBCA failing after 10.2.03 upgrade

After upgrading from Oracle 10g 10.2.0.1.0 to 10.2.0.3.0 I am no longer
able 
to use DBCA to create a new database. I believe the problem is the 
10.2.0.3.0 patch set does not upgrade the seed database used by DBCA from 
10.2.0.1.0 to 10.2.0.3.0. Thus after DBCA completes the DB replication and

attempts to start the instance it fails with a disconnect (essentially the

same error one receives if they do not upgrade their current databases
after 
the patch installation). This behavior is understandable given it's 
attempting to start a 10.2.0.1.0 instance. My question is how can I update

the seed database or otherwise utilize DBCA to create new databases after
an 
upgrade?

I am running Oracle 10g 10.2.0.1.0 with the 10.2.0.3.0 patch upgrade,
Oracle 
Enterprise Linux 4 Update 6 (x86, 32 bit, Oracles version of Linux). I've 
used DBUA and/or catupgrd.sql to upgrade my existing databases without 
problem. I've read the release notes, performed the necessary pre/post 
installation tasks, etc. I can't seem to find any reference to this issue 
through Google or in these forums. Am I the only one experiencing this 
problem?

Thanks in advance