On http://drupal.org/documentation/modules/translation it says "If available, both the site interface and site content are presented in the language selected."
I have both an English and a Japanese translated version of my front page: http://i32.photobucket.com/albums/d12/phreadom/transproblem4.png
However, when I set my language to Japanese the content remains in English: http://i32.photobucket.com/albums/d12/phreadom/not-right1.png
(Now if I go directly to the translated node #17336, I can see the translated content like I'm supposed to: http://i32.photobucket.com/albums/d12/phreadom/not-right2.png )
But the normal page content doesn't show up translated like it's supposed to. Even if I use the locale block on the side while I have "URL" and "Session" content negotiation enabled (along with "User", "Browser", and "Default", all in that order), it STILL only changes the interface translation and leaves the content as English.
There is a small language link at the bottom right of my content that I can click that DOES toggle JUST the content language (and not the interface), but that is totally irrespective of my actual user's main language setting and not at all how it says it should function, nor how it seems like it should intuitively function. It's incredibly frustrating.