--- twitter.inc	2010-07-04 19:02:10.411247778 +1200
+++ /tmp/twitter/twitter.inc	2010-07-04 19:26:22.000000000 +1200
@@ -373,7 +373,6 @@
  * @see twitter_cache_status()
  */
 function twitter_cache_account($twitter_account = array()) {
-  $twitter_account['screen_name'] = drupal_strtolower($twitter_account['screen_name']);
   db_query("DELETE FROM {twitter_account} WHERE twitter_uid = %n", $twitter_account['twitter_uid']);
   drupal_write_record('twitter_account', $twitter_account);
 }
@@ -435,7 +434,6 @@
     'import'      => 1,
   );
 
-  $account['screen_name'] = drupal_strtolower($account['screen_name']);
   if (db_result(db_query("SELECT 1 FROM {twitter_user} WHERE uid = %d AND screen_name = '%s'", $account['uid'], $account['screen_name']))) {
     drupal_write_record('twitter_user', $account, array('uid', 'screen_name'));  }
   else {