If you have no pictures or links anywhere in the thread, you may have modified your settings so as to not display images. Go to Settings, then to General Settings, scroll down to Thread Display Options, see if the box next to Images is checked. If it isn't, check it. While you are there, see in what order the threads are displaying. In the Pictures forums, usually the picture is the first post, so you want it to say "linear--oldest first". Be sure to save your changes before you leave the page.