้แก้ไขที่ไฟล์ Sources/MessageIndex.php ตามนี้ค่ะ
ค้นหาโค้ดส่วนนี้ออกมา
// They didn't pick one, default to by last post descending.
if (!isset($_REQUEST['sort']) || !isset($sort_methods[$_REQUEST['sort']]))
{
$context['sort_by'] = 'last_post';
$_REQUEST['sort'] = 't.ID_LAST_MSG';
$ascending = isset($_REQUEST['asc']);
แก้ไขเป็น..
// They didn't pick one, default to by last post descending.
if (!isset($_REQUEST['sort']) || !isset($sort_methods[$_REQUEST['sort']]))
{
$context['sort_by'] = 'last_post';
$_REQUEST['sort'] = 't.ID_TOPIC';
$ascending = isset($_REQUEST['asc']);