diff -r 1a3fbeeca686 sites/all/modules/twitter/twitter_actions/twitter_actions.module
--- a/sites/all/modules/twitter/twitter_actions/twitter_actions.module	Tue Sep 08 19:38:42 2009 -0400
+++ b/sites/all/modules/twitter/twitter_actions/twitter_actions.module	Tue Sep 08 20:33:27 2009 -0400
@@ -75,9 +75,10 @@
   $pass = $form_state['values']['password'];
   $name = $form_state['values']['screen_name'];
 
-  module_load_include('inc', 'twitter');
+  module_load_include('lib.php', 'twitter');
 
-  $valid = twitter_authenticate($name, $pass);
+  $twitter = new Twitter($name, $pass);
+  $valid = $twitter->verify_credentials();
   if (!$valid) {
     form_set_error('password', t('Twitter authentication failed. Please check your account name and try again.'));
   }