diff -uNdr drupal-5.7.old/cron.php drupal-5.7/cron.php
--- drupal-5.7.old/cron.php	2006-08-09 09:42:55.000000000 +0200
+++ drupal-5.7/cron.php	2008-02-16 15:50:48.000000000 +0100
@@ -1,3 +1,4 @@
+#!/usr/bin/php
 <?php
 // $Id$
 
@@ -6,6 +7,13 @@
  * Handles incoming requests to fire off regularly-scheduled tasks (cron jobs).
  */
 
+// If not in 'safe mode', increase the memory limit
+if (!ini_get('safe_mode')) {
+  ini_set('memory_limit', '20M');
+}
+
+chdir(dirname(__FILE__));
+
 include_once './includes/bootstrap.inc';
 drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
 drupal_cron_run();
--- drupal-6.16/includes/bootstrap.inc~	2010-05-04 18:27:27.000000000 +0300
+++ drupal-6.16/includes/bootstrap.inc	2010-05-04 18:31:49.802495730 +0300
@@ -318,8 +318,8 @@
     $_SERVER['HTTP_HOST'] = '';
   }
 
-  if (file_exists('./'. conf_path() .'/settings.php')) {
-    include_once './'. conf_path() .'/settings.php';
+  if (file_exists(conf_path() .'/settings.php')) {
+    include_once conf_path() .'/settings.php';
   }
 
   // Ignore the placeholder url from default.settings.php.