I am following the DNN tutorial for version 6 in DNNCreativeMagazine. When I get to the point where he creates a new page and sets the permissions to "everyone" by clicking in the checkbox I can't check the checkbox. None of the boxes are available to me to change.

Have I missed something? I am logged in as a superuser and have the mode set to edit.

When I create a new page it won't let me set the permissions so everyone can view the page.
Can anyone help me with this?
Thank you