Index: modules/user/user.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/user/user.module,v
retrieving revision 1.785
diff -u -p -r1.785 user.module
--- modules/user/user.module	22 May 2007 05:52:17 -0000	1.785
+++ modules/user/user.module	22 May 2007 14:19:14 -0000
@@ -1398,6 +1398,8 @@ function user_register_submit($form_valu
       // No e-mail verification is required, create new user account, and login user immediately.
       _user_mail_notify('register_no_approval_required', $account, $pass);
       user_authenticate($account->name, trim($pass));
+      $edit = array();
+      user_module_invoke('login', $edit, $account);
       $form_state['redirect'] = '';
       return;
     }