Aha, good idea. The JDBC driver is the same as was used on the old server (ojdbc14.jar), however it is for 10g. The Oracle site shows a different driver (ojdbc6.jar) for 11g. I'll try swapping it out and see what happens.
As for the connector config, it is here:Image may be NSFW.
Clik here to view.
As for errors, there are no errors in either MII or Oracle. That is the strangest part (and the most frustrating. Since it isn't repeatable I can't catch in in the BLS running manually in trace mode.
Thanks for the help.