[Plugin: WP-Polls] Issues with W3 total cache

Unfortunately, the v. 2.5 of this does not work well with WP 3.0.1 & the 3W cache. Once a vote is send, the panel will freeze, showing only the results of the poll to all other users. I then installed the v. 2.6, a version that it is showing on the WP plugins site (why is it a beta?) and this problem was solved but another problem came up on the polls’ archive page:
Division by zero in /home/xxx/site/wp-content/plugins/wp-polls/wp-polls.php on line 1003

Any clues?