Thank for all the advice folks!
You all agreed that the JAR file ought to go in TomCat's 'common\lib'
directory, which is encouraging,
so I have moved it, and restarted TomCat but still no joy!
I have also changed the code to use the ODBC driver to PostgreSQL and get
the same error - do I have
to do any configuration in TomCat to use PostgreSQL - for instance, set up a
'realm' or something??
Cheers
Chris Parsons