[Plugin: WordPress Poll] cookies not working

I can vote multiple times in a poll that should only allow 1 vote.

I’ve tried changing it to IP instead of cookies, but that doesnt work either.

done on several PC’s with Firefox and IE

anyone ever seen this before?

http://ww.wp.xz.cn/extend/plugins/cardoza-wordpress-poll/

edit I am using the most recent Cordoza poll plugin updated yesterday