i found an example for my weak question...
if you enter the poll at http://www.proxy2.de/ and then hit refresh, you don't get any of the lame "the page cannot be refreshed without resending..." message.
however, download the advanced poll, put it in a secret directory on your site, and try it out... when you vote, then click refresh it'll give you the lame message.
am i missing something obvious here?
keith