I have a feeling it's got something to do with this code in header.php, please correct me if i'm wrong!
// START SUBST - <pun_status>
if ($pun_user['is_guest'])
$tpl_temp = '<div id="brdwelcome" class="inbox">'."\n\t\t\t".'<p>'.$lang_common['Not logged in'].'</p>'."\n\t\t".'</div>';
else
{
$tpl_temp = '<div id="brdwelcome" class="inbox">'."\n\t\t\t".'<ul class="conl">'."\n\t\t\t\t".'<li>'.$lang_common['Logged in as'].' <strong>'.pun_htmlspecialchars($pun_user['username']).'</strong></li>'."\n\t\t\t\t".'<li>'.$lang_common['Last visit'].': '.format_time($pun_user['last_visit']).'</li>';
if ($pun_user['g_id'] < PUN_GUEST)
{
$result_header = $db->query('SELECT COUNT(id) FROM '.$db->prefix.'reports WHERE zapped IS NULL') or error('Unable to fetch reports info', __FILE__, __LINE__, $db->error());
if ($db->result($result_header))
$tpl_temp .= "\n\t\t\t\t".'<li class="reportlink"><strong><a href="admin_reports.php">There are new reports</a></strong></li>';
if ($pun_config['o_maintenance'] == '1')
$tpl_temp .= "\n\t\t\t\t".'<li class="maintenancelink"><strong><a href="admin_options.php#maintenance">Maintenance mode is enabled!</a></strong></li>';
}
if (in_array(basename($_SERVER['PHP_SELF']), array('forum.php', 'search.php')))
$tpl_temp .= "\n\t\t\t".'</ul>'."\n\t\t\t".'<ul class="conr">'."\n\t\t\t\t".'<li><a href="search.php?action=show_new">'.$lang_common['Show new posts'].'</a></li>'."\n\t\t\t\t".'<li><a href="misc.php?action=markread">'.$lang_common['Mark all as read'].'</a></li>'."\n\t\t\t".'</ul>'."\n\t\t\t".'<div class="clearer"></div>'."\n\t\t".'</div>';
else
$tpl_temp .= "\n\t\t\t".'</ul>'."\n\t\t\t".'<div class="clearer"></div>'."\n\t\t".'</div>';
}
$tpl_main = str_replace('<pun_status>', $tpl_temp, $tpl_main);
// END SUBST - <pun_status>
I have
if (in_array(basename($_SERVER['PHP_SELF']), array('forum.php', 'search.php')))
in header.php so that it shows the new posts and mark all topic links on the forum index, as i'm using the mini portal.