Viart Shop

Has anyone managed to get past the image flicker that IE6 shows when you hover over an image which has a hover state?
 
Ive tried adding the following code in index.html to no avail and wondered if anyone else could shed any light?
 
Code:
 
<script type="text/javascript">
//<![CDATA[
try {
document.execCommand('BackgroundImageCache', false, true);
} catch(e) {}
//]]>
</script>