Some times, your theme does not need the compare products in the sidebar for a 2 column layout.
Here is the xml you add to your app/desing/PACKAGENAME/THEMEFOLDER/layout/local.xml
<?xml version="1.0" encoding="UTF-8"?>
<span ><reference name="right">
<span ><action method="unsetChild"><name>catalog.compare.sidebar</name></action>
Make sure you refresh your caches and you should see that go away.
Here it is before the updated xml
Here it is after the updated xml and refresh caches