It sounds as though you created the frame in question with a POST request so all browsers would want to resend the data in order to create the same page.

By looking at your code though I'm wondering if its your automatic refresh meta-tag that is causing the problem rather than the refresh button. I say that because the refresh button as it appears is really just a new form that sends new data, the browser shouldn't be looking at that as refreshing the page but as a completely new form. However the 'refresh' meta in your bottom frame probably is. If you are creating that bottom frame with a POST request it will keep doing that. The best solution I would think is to restructure your original request to be a GET, that would probably solve the problem.

Hope that helps
Chris