Index: includes/bootstrap.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/bootstrap.inc,v
retrieving revision 1.212
diff -u -r1.212 bootstrap.inc
--- includes/bootstrap.inc	26 Jun 2008 11:29:20 -0000	1.212
+++ includes/bootstrap.inc	26 Jun 2008 15:35:21 -0000
@@ -718,6 +718,7 @@
  * Internet Explorer 6.
  */
 function check_plain($text) {
+  $text = html_entity_decode($text, ENT_QUOTES, 'UTF-8');
   return drupal_validate_utf8($text) ? htmlspecialchars($text, ENT_QUOTES) : '';
 }