If you have a drupal site on a cPanel account, you can set up cron in cPanel. Here is how:
(1) Your site is, say, example.com
(2) Log into cPanel (example.com/cpanel)
(3) Go to cron jobs > standard
(4) Enter the following code in your cron:
/usr/bin/lynx -source http://example.com/cron.php(replace example.com with your actual website)