How to access dashboard without authentication in Pentaho 5.0 Platform

Before we can simply append parameter ?userId=joe&password=password to by pass the security check for a given dashboard, now the default userId was changed from joe to admin, but simply appending parameters ?userId=admin&password=password does not work out of the box.

Then I was looking at the alternative solutions, which is removing the security for Pentaho BA Server 5.0, by following the guide http://infocenter.pentaho.com/help50..._security.html

This doesn't seem to work, although it is no longer require the user to login using the standard login box, it will challenge user with a pop up window for authentication, and it appear to be basic authentication window.

Is there a way to get rid of this basic authentication?

Please help.

Thanks.

Zheng