I'm trying to set a background image (it's really just a PNG file of a light gray background), but every time I upload it, it only appears in the footer when I want it to be the content area, and/or the whole/most of the page if need be. Why would that be? I've even tried adjusting it on the site wide Pageline Global Settings page (even though I only want it on the "Portraits" pages - including the corresponding sub categories), but it also is only appearing in the footer. Any advice? Thanks!