'type' => SMOPT_TYPE_BOOLEAN,
'refresh' => SMOPT_REFRESH_ALL
);
- if ($allow_thread_sort == 'TRUE') {
+ if ($allow_thread_sort == 'true') {
$optvals[SMOPT_GRP_MESSAGE][] = array(
'name' => 'sort_by_ref',
'caption' => _("Use References header for thread sort"),