It sounds like maybe you installed DBI & DBD from an RPM like package, and didn't go through the 'perl Makefile.PL','make','make test' and 'make install'. I find that sometimes these things are best done manually one step at a time, so you can look through the README's in the CPAN distribution as (or before) issues arise) during installation. Unless someone more familiar with Oracle has a clue and can help :-)

BTW, you don't need to reply to every post in the thread with the same message :)