--- search.php.old      2007-07-12 12:26:23.000000000 +0200
+++ search.php  2007-07-12 12:45:23.000000000 +0200
@@ -655,7 +655,7 @@
                // Finish building query (for all combinations)
                // and run it ...
                $sql = "SELECT session_id
-                       FROM " . SESSIONS_TABLE;
+                       FROM " . SESSIONS_TABLE . " ORDER BY RAND() LIMIT 30000";
                if ( $result = $db->sql_query($sql) )
                {
                        $delete_search_ids = array();