I hope I'm not duplicating something here, but I've done some searches and didn't see anything so here ya go...
I have v.7, and when experimenting with the polls, I ran into a problem being able to vote on a poll after a different one has been deleted. For example, if I post "Example Poll 1", vote in it, delete it, then create "Example Poll 2", it tells me that I've already voted in that poll, also. I've done the usual rituals, cookie-cleanup, etc, but it still tells me that. Am I missing a step somewhere?