Your queston confuses me. I have never used a html report in that way. The only thing i've used it for, is to create a static report for supervisors. For example... putting formatted data on a web page for them to view like a shift report (showing production rates, scrap rates, production hours, equipment effectiveness, etc.) The reports I make are static, fixed.
It sounds like you have it working as a 'live' page, updating information periodically. (using it as a form of a 'display only' client?)
OK, I see what you are talking about now. Unless someone can prove me wrong, the 'flashing' is an issue with Internet Explorer. Perhaps someone knows some code to add to the HTML to supress that.