--- badbehavior.module	Sun Sep 25 14:55:10 2005
+++ badbehavior.module	Fri Mar 31 18:02:20 2006
@@ -170,7 +170,12 @@ function badbehavior_init() {
 
   define('WP_BB_LOG', '{bad_behavior_log}');
 
-  require_once(WP_BB_CWD . "/bad-behavior-core.php");
+  if (file_exists(WP_BB_CWD . "/bad-behavior-core.php")) {
+    require_once(WP_BB_CWD . "/bad-behavior-core.php");
+  }
+  else {
+    watchdog('badbehavior', t('The third-party bad-behavior files are not installed. Please consult badbehavior/README.txt for details.'), WATCHDOG_ERROR);
+  }
 }
 
 function bb_convertdate($bbdate) {