Can't view HD DVD Protected Content

I have the HP Pavilion Media Center PC with VISTA Home Premium and Sceptre digital monitor. I rented an HD DVD from Blockbuster and tried to play it on the built-in HD DVD drive with the built-in HD DVD Media Center player, but I get a notice on the monitor screen that says the movie is PROTECTED CONTENT and I am not allowed to view PROTECTED CONTENT.

What can I do, please? Do I need to buy different HD DVD player software or a special License or what, please?

Then without the PC, what would you recommend as the best stand alone HD DVD player to go directly to an HD TV?

Thanks for your help, Gordon

The graphics card and monitor have to be HDCP compliant if your connecting via a DVI connector.

Also PowerDVD HD version 7.3 or above is very good.