Pages not protected

Hi,

I am busy installing the Membership plugin (2.0) and have more or less got it working the "protection levels" working. I have protected parts of a blog post and that works fine.

However, I don't seem to be able to protect "Pages" in wordpress. For my "Stranger" level, I have added two pages to the negative rules section (see screenshot). However when I visit their URLs they are still visible.

Can someone help with this?

Thanks,
Robin