Scheduled Tasks are not "real" cron jobs. scheduled talks will only run when there is activity on the forum, specifically when the footer is loaded. If you're the only one on the test server and you don't do anything for 10 minutes, the tasks won't run at all... they only can run in response to user activity.
If you need something to run all the time regardless of user activity then you need to setup a real cron job, usually from your cpanel if you have one.
Jhonnyf 
12-26-2010, 09:06 PM
Threaded Mode