Re: Category based permission troubles
As was stated by another poster the view_categories permission only allows you to view the categories themselves not objects categorized under them. You need to also assign the view_categorized permission too.
I have a similar need and have managed to get this working, so I know that it can be done. I would recommended retracing your steps; checking defined user groups and inherited permissions, checking the global permissions first, then finally the individual category permissions.
;){kind=link}
;){kind=link}