VisioList Updating stats - Cron
VisioList by default has its own internal "pseudo" cron job check. Cron jobs are not required.
At the first hit of each day several functions are called and statistics are updated, on really popular lists this can cause occasional "race situation" issues like stats being skipped or resulting in all 0 for a day.
The correction for this is simple,
1) open your settings_sql.php file and add the following line:
$CONF['cron'] = '1';
2) Set a cron job on your server to run cron.php from your Visiolist root directory. Contact your host if you are unsure how to set a cron job.