When I had friends test my form -- in which a do quite a bit of page branching -- the first page loaded and allowed them to click a choice but would not allow them to click the "Next" button to continue. In fact, the "next" button was faded out so was not, in essence, a choice at all.
It works fine when I test in on my computer. So, I'm wondering if perhaps blocking pop-ups or refusing cookies (on their end) could be the problem.
Thanks in advance for any help you can give...