/Sources/MessageIndex.php
'link' => '<a href="' . $scripturl . '?topic=' . $row['ID_TOPIC'] . '.0">' . $row['firstSubject'] . '[/url]'
แก้เป็น
'link' => '<a href="' . $scripturl . '?topic=' . $row['ID_TOPIC'] . '.0" target="_blank">' . $row['firstSubject'] . '[/url]'
