[fireknight]

Post the code you have for promotion in your modtask.php.
So we can see how the modtask is writing to your comment box.

Example ( original 08 code )

  if ($curclass != $class)
  {
    // Notify user
    $what = ($class > $curclass ? "promoted" : "demoted");
    $msg = sqlesc("You have been $what to '" . get_user_class_name($class) . "' by $CURUSER[username].");
    $added = sqlesc(get_date_time());
    mysql_query("INSERT INTO messages (sender, receiver, msg, added) VALUES(0, $userid, $msg, $added)") or sqlerr(__FILE__, __LINE__);
    $updateset[] = "class = $class";
    $what = ($class > $curclass ? "Promoted" : "Demoted");
         $modcomment = gmdate("Y-m-d") . " - $what to '" . get_user_class_name($class) . "' by $CURUSER[username].\n". $modcomment;
  }

It will properly be this part that is causing the issue

    $updateset[] = "class = $class";
    $what = ($class > $curclass ? "Promoted" : "Demoted");
         $modcomment = gmdate("Y-m-d") . " - $what to '" . get_user_class_name($class) . "' by $CURUSER[username].\n".