Index: includes/session.inc
===================================================================
--- includes/session.inc	(revision 103)
+++ includes/session.inc	(working copy)
@@ -43,12 +43,16 @@
   else {
     $user->roles[DRUPAL_ANONYMOUS_RID] = 'anonymous user';
   }
+  $GLOBALS['account'] = (array)$user;
 
   return !empty($user->session) ? $user->session : '';
 }
 
 function sess_write($key, $value) {
-  global $user;
+  global $account, $user;
+  if (empty($user)) {
+    $user = (object)$account;
+  }
 
   $result = db_query("SELECT sid FROM {sessions} WHERE sid = '%s'", $key);