String fix

plugins/administrator/defines.php

@@ -337,7 +337,7 @@ $defcfg = array( '$config_version' => array( 'name' => _("Config File Version"),
                                              'type' => SMOPT_TYPE_BOOLEAN ),
                  '$use_icons'  => array( 'name' => _("Use icons"),
                                          'type' => SMOPT_TYPE_BOOLEAN ),
-                 '$use_iframe' => array( 'name' => _("Use inline frames with html mails"),
+                 '$use_iframe' => array( 'name' => _("Use inline frames with HTML mails"),
                                          'type' => SMOPT_TYPE_BOOLEAN ),
                  '$use_php_recode'  => array( 'name' => _("Use PHP recode functions"),
                                               'type' => SMOPT_TYPE_BOOLEAN ),