Index: trunk/admin/logs/session_list.php
===================================================================
diff -u -N -r943 -r979
--- trunk/admin/logs/session_list.php	(.../session_list.php)	(revision 943)
+++ trunk/admin/logs/session_list.php	(.../session_list.php)	(revision 979)
@@ -215,7 +215,7 @@
 $sql .=" as us LEFT JOIN ".GetTablePrefix()."PortalUser as p USING (PortalUserId) ";
 $sql .="LEFT JOIN ".GetTablePrefix()."UserGroup as u ON (p.PortalUserId=u.PortalUserId AND u.PrimaryGroup=1) ";
 $sql .="LEFT JOIN ".GetTablePrefix()."PortalGroup as g ON (u.GroupId=g.GroupId) ";
-$sql .= " WHERE us.Status = 1 ";
+$sql .= " WHERE us.Status = 1 AND us.PortalUserId <> -1 ";
 if(strlen($where)) {
 	$sql .= "AND ".$where;
 }