I am having this issue as well. My website will be going live soon and I need to reset the votes on my polls. I do not see an option to do so.
A few issues that I have noticed right away:
When “Show Total Votes” is set to YES, “Show Total Answers” always defaults to “YES”. When I change it to NO and save, it makes the change but whenever I go to another section or refresh, it changes back to YES.
Even though I have the “Limit Number Of Votes per User” set to YES and “Votes per user” set to 1, guest users are able to vote an infinite number of times. It does not appear to actually limit the number of votes. If the user is logged in however, it does only allow them to vote once.