There are several sections to this form.  Click on the next button at the bottom of each section to proceed to the next section.  You may have to scroll the form to see more questions and to reach the bottom where the next button is located.  There should be a scroll bar on the right side of the form inside the page.  Use that bar to scroll the form.  The scroll bar to the far right only scrolls the page.  They are two separate scroll bars.  Please be aware of this.