We’ve just confirmed an issue that has started to be reported on newsgroups and forums that after installing Netscape 8 the XML rendering capabilities of Internet Explorer no longer work. That means that if you navigate in IE to an XML file such as an RSS feed http://msdn.microsoft.com/xml/rss.xml or an XML file with an XSLT transformation applied then rather than seeing the data you are presented with a blank page.
We currently have the following work around for people that are hitting this issue:
Unfortunately if Netscape 8 remains installed then the registry key is continually rewritten so this is an essential step if you are to be able to view XML content in IE.
We are currently continuing our investigation and are looking forward to working with Netscape to resolve this issue.Thanks-Dave