I'm not sure if this is by design or a bug, but when in a gallery forum, the link for the photo is different than the subject text underneath the photo. It appears that clicking on the photo would bring you to the unread posts, whereas clicking on the subject line would just bring you to the top of the page. I would suggest that these both link to the same spot, whereever that might be, since people would normally assume that they would go to the same spot.