WP-Surveys can’t forget!!! Help!

Help me! I tried a sample survey and had a few people respond to it. I then retired that survey and posted a new one. But now, no matter what I do, I can’t see the survey myself (it just thanks me for participating in it). People who have never answered a survey on my site before can see it, and if I delete my cookies I can start seeing it again, but I can’t possibly insist that all my readers must delete their cookies every time a new survey is published!

What’s going on!