Features / Usability

Is it really possible to print to PDF?  I've set everything up properly, but when I am looking at a page and click on the PDF icon, all I get downloaded is a PDF file that has rendered a login screen.  I'm already logged in, and obviously I can't log in to a PDF file, so it's rather frustrating.  Is there something I'm missing to enable?  The documentation doesn't seem to mention any restrictions on only being able to print public pages, and it's a pretty useless feature if you have to be logged in, since on my site you have to be logged in to see pretty much every document on the Tiki...