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i commented out the 'setcookie' lines in 'xoopspoll/index.php' and in 'xoopspoll/blocks/xoopspoll.php'. now different registered users may vote from one ip/computer.
however, no anonymous votes are allowed. results show when anonymous, unless the vote button is hit. anonymous votes get the 'sorry you already voted' message.
i think this fixes it properly for me. although it would be nice to have the option to allow anonymous votes. i know my hack and allowing anonymous votes can compromise the results, but for certain applications, it is preferred.
we have a youth center. it's a poor area so the only place for them to vote is on our computers. they also don't like to register. case in point...