Index: trunk/kernel/include/modules.php
===================================================================
diff -u -r315 -r361
--- trunk/kernel/include/modules.php	(.../modules.php)	(revision 315)
+++ trunk/kernel/include/modules.php	(.../modules.php)	(revision 361)
@@ -896,7 +896,7 @@
   }
 }
 
-if (strstr($_SERVER['SCRIPT_NAME'], 'install')) {
+if (strstr($_SERVER['SCRIPT_NAME'], 'install') && $objSession->Get("PortalUserId") == 0) {
 	$objSession->Delete();
 }