Index: branches/RC/core/units/general/helpers/sections_helper.php
===================================================================
diff -u -N -r11353 -r11711
--- branches/RC/core/units/general/helpers/sections_helper.php	(.../sections_helper.php)	(revision 11353)
+++ branches/RC/core/units/general/helpers/sections_helper.php	(.../sections_helper.php)	(revision 11711)
@@ -41,7 +41,10 @@
 				return ;
 			}
 
-			$this->Application->UnitConfigReader->ReReadConfigs();
+			if (!(defined('IS_INSTALL') && IS_INSTALL)) {
+				// don't reread all configs during install, because they are reread on every install step
+				$this->Application->UnitConfigReader->ReReadConfigs();
+			}
 
 			$this->Tree = Array();