"Cannot view XML input using XSL style sheet" Error

Hi,

I am new to RSS feeds and I am having some problems setting them up. I would like to use IE7 which has a built in reader but get the following message when I click on the RSS feed button when it is lit up. I also got this message when I clicked on the microsoft RSS feeds already pre-installed in the Feeds. I have Vista installed.

"Cannot view XML input using XSL style sheet"

I have deleted the Microsoft feeds and have been trying to install the BBC news feed. When I click on the RSS button, which is lit up, it takes me to a page that instructs me how to subscibe by dragging the orange icon or pasting the address into the reader. What reader and where do you paste? Am I taken to this page because the IE7 reader is not working?

Other sites bring up the error message and some sites bring up the XML code. I know I can use a third party reader, but I would like to keep it all in IE7.

Any help would be appreciated.

Axel