Are you using widgets?
That part of your code shows up like so:
<div align="center"> <img src="http://www.sandwichreport.com/Images/sidebarspacer.gif">
<li><script type="text/javascript"><!--
google_ad_client = "pub-9544679123293558";
/* 160x600, SR.com created 7/8/08 */
google_ad_slot = "9182433027";
google_ad_width = 160;
google_ad_height = 600;
//-->
</script>
<script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
</script><iframe name="google_ads_frame" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-9544679123293558&dt=1215541409248&lmt=1215541407&output=html&slotname=9182433027&correlator=1215541409248&url=http%3A%2F%2Fwww.sandwichreport.com%2F&frm=0&cc=100&ga_vid=3497714288551476700.1215541409&ga_sid=1215541409&ga_hid=1389859383&ga_fc=true&flash=9.0.115&u_h=864&u_w=1152&u_ah=836&u_aw=1152&u_cd=32&u_tz=540&u_his=1&u_java=true&u_nplug=25&u_nmime=67" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" width="160" frameborder="0" height="600"></iframe></li>
</div>
It’s an incorrectly formatted list which I believe is due to putting that in widgets. If so, you don’t need to include the divs or close the div prior.
Get rid of the <li>
and </li>
.