Infinite redirects when attempting to create page

[spiffytech]

wiki.web2py.com/_pages does not have a "create page" link. When I enter the URL manually (using any of the URLS here: http://wiki.web2py.com/Issues_with_this_wiki_001 ) I an sent infinite redirections. the wiki redirects me to http://wiki.web2py.com/wiki/default/user/not_authorized which redirects me to http://wiki.web2py.com/_create/wiki which sends me back to http://wiki.web2py.com/_create/wiki .

Firefox tries to follow the redirects automatically, and complains that they are infinite. If I visit the wiki in the Opera browser I can see the individual redirection pages and the links they're sending me to.

I am logged in to the wiki while trying to do this (account email: <email address hidden>).