Broadcast problem -important mssg must go out

A member of our volunteer group has died and we need the announcement to go out immediately. I manually ran Cron and Broadcast did not get sent. Can you see anything obvious from the data in the `notifications_queue` table?

Query for Broadcast messages: SELECT * FROM `notifications_queue `WHERE `sid` =0;

Pertinant data the same in all rows
• sid = 0
• type = NULL
• send_interval = 604800
• send_method = mail
• sent = 0
• created = 1366689340
• cron =1
• conditions = 0
• module = notifications
• destination = NULL