Parse error: syntax error, unexpected '}'错误如何解决

<?
$msg_res = ar::liebiao("ar_news"," where diqu_c=40 and ClassID=$sp order by id desc limit 5");
                            while($msg_3=$db->fetch_array($msg_res))
{ 
                        ?>
                            <tr>
                              <td width="20" height="26"><img src="images/an02.jpg" width="11" height="11" /></td>
                              <td width="499" height="26" align="left"><a href="content.php?id=<?=$msg_3['id']?>"><?=$msg_3['Title']?></a></td>
                              <td width="160" height="26" align="center" class="hz3">现价：<?=$msg_3['price_new']?>元/人</td>
                            </tr>
                            <tr>
                              <td height="1" colspan="4" background="images/line.jpg"></td>
                            </tr>
                            <?php
                           }
                            ?>
这段代码运行报错，php5.4.4下，错误显示为：Parse error: syntax error, unexpected '}'，php5.3下正常。
如何解决，谢谢指点。