[support] Drupal 7 cron does not appear to be running.

Hi, I am rather new to Drupal. I have configured cron to run via crontab on HostGator. Appears to be running, however the status report shows that is has been a while since cron has run. Drupal 7 on HostGator reseller account. (I know HG lacks the resources to run Drupal adequately... Hoping Boost will fix that.) Any help much appreciated. -- Keith Smith