Wp-polls: wrong “voters” count in one poll. Can’t reset.

I am running a poll that has been answered by a handfull of people. Each participant can click on max 7 options while answering (and usually have done so), so the votes/voters ratio should be at least 5/1, if not 7/1. I should see 95 votes and 18 voters.

Suddently there was “95 voters” and about one vote per person (a little more than one hundred). I would have expected 20 voters, not 95.

This happened suddenly, so I started to investigate this. I launched phpMyAdmin and checked the wp-polls tables. I found 18 separate IP addresses there. Definitely not 95, and definitely not even 95 ip+time pairs.

I thus went back to my blogs admin pages and reset the wp-polls voter count to 18. For a while, everything looked normal. That was yesterday.

Today, again, the voters count is up at 98. Very strange. This is ruining the validity of the poll.

What’s wrog with the wp-polls database? Should I go in there and manipulate a bit? We have another poll running (since january) that has 133 answers now. It’s growing steadily and nicely. They’re on the same page and both are equally relevant.