I know to check the box, but nothing happens when I do.
When you check the box at the bottom of your post, it should automatically take you to the poll options. If it’s not, something is bugged. Maybe a browser issue? You do have to click submit or post (don’t recall the wording) before it takes you to the next section.
Yup, just went through the steps to verify the wording. Make your post, then click the “Create a poll with this number of options (Maximum 10):” box, then hit the “Submit [name_m]New[/name_m] Thread” button. It takes you to the next page where you make your poll, then you post it.