Index: trunk/kernel/include/usersession.php
===================================================================
diff -u -N -r7391 -r7413
--- trunk/kernel/include/usersession.php	(.../usersession.php)	(revision 7391)
+++ trunk/kernel/include/usersession.php	(.../usersession.php)	(revision 7413)
@@ -788,7 +788,7 @@
 			$rs = $this->adodbConnection->Execute($sql);
 			
 			$PermList = Array();
-			while (!$rs->EOF) {
+			while ($rs && !$rs->EOF) {
 				$this->SysPermCache[ $rs->fields['Permission'] ] = $rs->fields['PermissionValue'];
 				$PermList[] = $rs->fields['Permission'];
 				$rs->MoveNext();