I feel stupid because I know I am doing something wrong but can't figure it out. I read the sticky on posting pictures in the forum and I can post a picture as a thumbnail, no problem. But many threads people have their pictures posted as an image that opens when I open the thread and I don't have to open a thumbnail. I have even tried to do it from my gallery here on TPF but I get an error saying "invalid file". I have also tried to post from my Webshots site and from my Flickr account. What do I need to do to get my pictures to post as an image not a thumbnail?