I have a job that does not run automatically. It runs fine when I execute dbms_job.run(); but it never runs on the "next_date". After executing with dbms_job.run the next_date looks correct but it never runs.

The init.ora file has the following settings:
job_queue_processes = 2
job_queue_interval = 10

Here is the job:
BEGIN
dbms_job.submit(
:jobno,
'owner.proc();',
sysdate,
'SYSDATE + 10/1440'
);
commit;
END;
/

Any ideas?