hi there:
just as a side note, it's generally best if you post a new topic rather than posting to an old issue... for tracking purposes, we try to keep issues separate. we usually see new posts before we see responses to old content, so often, you'll even get a faster response. <img src="https://www.ubbcentral.com/boards/images/graemlins/wink.gif" alt="" />
anyway, on to the problem at hand: this is an issue with IIS being set to send headers, even though the application sends them. have you asked your host (or systems admin) to disable the sending of headers in IIS?