New KB article - Error message when you try to view a Web page that contains IFRAME elements in Internet Explorer: “Object does not support this property or method”
"When you try to view a Web page that contains IFRAME elements in Microsoft Internet Explorer, you receive the following script error message in Microsoft Internet Explorer: Object does not support this property or method"
http://support.microsoft.com/default.aspx/kb/924926
Basically the site owner has to fix the problem.