Jeff --
Error number is also I'd like to have since the customer didn't provide one. I've asked support to check with them.

Sam --

I have a question (maybe stupid) to ask you:
Our application uses Oracle ODBC driver to connect to Oracle database, so does that have any implication on if we are still using SQL*Net? I think it still does, but not very clear on what's the relationship between SQL*Net and Oracle ODBC driver, i.e. how do they work together. Can you shed some light for me on this? Really appreciate it.