There are reports at WebmasterWorld and Google AdSense Help of users of Internet Explorer 8 having issues viewing pages with Google AdSense on them.
On user explained:
This is supposedly only happening on a specific version of Internet Explorer and only happening one web sites that contain Google AdSense.
It might be related to a Google change or maybe a Microsoft change. It is unclear at this point.
Forum discussion at WebmasterWorld and Google AdSense Help.
