I missed the job number in my initial posting. But, yes, I do understand that I need to put the job# there. But when I execute that command and query the dba_jobs table for that job the next_sec field is set at 00:00:00, whereas it should be 7:00:00.
So, it makes me feel there is something wrong with the syntax, 'cause the system should calculate and display the next time the job needs to be run.

Chintz