I've have searched on this for hours...
So I've got a large website that's updated with new nodes all the time, and I'm also using aggregator and have 4 different feeds being imported into the site and displayed using views.
For some reason my cron will not run automatically. It used to work but not any more. For example I just went into cron and it was last run 6 days and 21 hours ago (when I did it manually)
It's fine manually ie if I click the 'Run cron' button it works.