--- create_account.php.orig	2004-10-16 20:09:15.000000000 +0200
+++ create_account.php	2004-10-16 20:07:57.000000000 +0200
@@ -77,7 +77,9 @@
     }
 
     if (ACCOUNT_DOB == 'true') {
-      if (checkdate(substr(tep_date_raw($dob), 4, 2), substr(tep_date_raw($dob), 6, 2), substr(tep_date_raw($dob), 0, 4)) == false) {
+      // WS - MAX - use tep_checkdate instead 
+      $notused = array();
+      if (tep_checkdate($dob, DOB_FORMAT_STRING, &$notused) == false) {
         $error = true;
         $messageStack->add('create_account', ENTRY_DATE_OF_BIRTH_ERROR);
       }