When you view a Web page in Windows Internet Explorer 8 on a computer that is running Windows Vista, the Web page is not displayed correctly.
Note In order to identify whether you are experiencing this issue, you can use an HTTP debugger tool to capture and then analyze the Internet Explorer trace. For example, you can use the Microsoft Fiddler HTTP debugger tool.
This hotfix is included in the cumulative hotfix that is described in Microsoft Knowledge Base article 980182.
980182 MS10-018: Cumulative security update for Internet Explorer
To apply this hotfix, you must have Internet Explorer 8 installed on a computer that is running Windows Vista.