Peter, you have to be logged on in order to see this button. First, log on. Then go to the "Polls" board. When you're logged on and on the "Polls" board, you should definitely see this button. If you do not, I suppose you should tell Mike about it.
Peter, can you take a screen shot of what exactly you're seeing there? Press Alt + Print Screen button and then paste it (Ctrl + V) into either Microsoft Word Document or somewhere else, and save it, and post it here. Be logged on while you take the screen shot. It would be best if it were a JPEG file or a MS Word document, as most of us should be able to open such files.
When you look at your keyboard, there is a key that says "Print Screen/Sys Rq" - it's right in the top right corner of the keyboard, above the numbers on the right. (Well, actually it's the second key from the top right corner). Press Alt and press "Print Screen/Sys Rq" at the same time. Then go to MS Word or some image editing program and (make a new file and) press Ctrl + V to paste the screen shot and save it, so that you can post it here.