I don't know about you guys, but smileys haven't always been working for me.
Notice how this says :D. That's the name of a broken smiley, if it appears the same way as it does for me.
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/spam.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/spam.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/smiley.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/smiley.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/wink.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/wink.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/angry.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/angry.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/shocked.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/shocked.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/cool.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/cool.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/huh.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/huh.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/tongue.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/tongue.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/laugh.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/laugh.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/devil.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/devil.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/undecided.gif): n http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/undecided.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/cry.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/cry.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/sick.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/sick.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/sad.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/sad.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/huh2.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/huh2.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/XD.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/XD.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/scared.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/scared.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/thumbsup.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/thumbsup.gif
(http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/mikeembarassed.gif): http://www.henriwatson.com/sites/zach/lemmings/Smileys/lemmings/mikeembarassed.gif
There are more, but it's a start, right?