diff --git t3lib/config_default.php t3lib/config_default.php
index c0ba755..3ec4e75 100644
--- t3lib/config_default.php
+++ t3lib/config_default.php
@@ -249,7 +249,7 @@ $TYPO3_CONF_VARS = array(
 		'loginNewsTitle' => '',					// Define alternative header message for the LoginNews. If this var is empty, the default header "Important messages:" is displayed.
 		'XLLfile' => array(),					// @deprecated For extension/overriding of the arrays in 'locallang' files in the backend. See 'Inside TYPO3' for more information.
 		'notificationPrefix' => '[TYPO3 Note]',	// String: Used to prefix the subject of mails sent in the taskcenter
-		'accessListRenderMode' => 'singlebox',	// Can be "singlebox", "checkbox" or blank. Refers to the "renderMode" for the selector boxes in be-groups configuration.
+		'accessListRenderMode' => 'checkbox',	// Can be "singlebox", "checkbox" or blank. Refers to the "renderMode" for the selector boxes in be-groups configuration.
 		'explicitADmode' => 'explicitDeny',	// Sets the general allow/deny mode for selector box values. Value can be either "explicitAllow" or "explicitDeny", nothing else!
 		'TSconfigConditions' => TRUE,			// Boolean: When set it is possible to have TypoScript like conditions in BE Page/User/Group TS-Config
 		'niceFlexFormXMLtags' => TRUE,			// If set, the flexform XML will be stored with meaningful tags which can be validated with DTD schema. If you rely on custom reading of the XML from pre-4.0 versions you should set this to false if you don't like to change your reader code (internally it is insignificant since t3lib_div::xml2array() doesn't care for the tags if the index-attribute value is set)