CRON Each hosting company is different so I cannot tell you how to create a cron but it must be done to keep your database in check. The file cron.php in your chirp installation directory controls the deletion of old messages and waiting users so that your database wont grow overwhelmingly large. Check with your hosting company on how to create a cron job using the cron.php file. Typically you this would be the command and works for a large majority of the hosting companies out there. lynx -dump http://www.yourdomain.com/cron.php Here are a few options used by some hosting companies like mediatemple.net php5 /home/yourdomain/data/cron.php or curl --silent http://www.yourdomain.com/cron.php I would run the cron once a day just to keep the cpu of the server taxed only once a day.