Microsoft does have a driver, but we use the Oracle ODBC driver. We've got about 100 end users that work with this application, so that would be a last resort. The odd thing is that I'm able to update this field = NULL with a SQL string I'm creating and issuing the SQLEXEC command. My guess is something strange is happening when it's trying to do the TableUpdate() because the field is a memo data type, but I don't know what exactly is wrong.