There is a image there, I guess something is wrong with your computer..anyhow, just go to advacned post, and go all the way to the bottom, and there is an option, just read
Thanks for trying Mark, but, as with Dev, I am seeing nothing, I've checked my computer thoroughly, as Dev said it must be that, strangely though, here, where I'm typing this, there are two items, one, an URL with "brookpoll" in it, the other one is imageshack, "http//img406" etc, can't understand it, I think it must be a CF glitch.
when you start a new thread, under the "additional options" section, right under the notification type drop down, theres a checkbox, "yes, include a poll in this thread"