There seems to be a problem with either GOOGLE Ads or the ads that are on the top and bottom. If one loads, it makes the browser believe you've gone "forward." If another loads, same thing. If you stay on a page for a long time reading all the posts, you may have about 10 ads in the history. Apparently it's only on IE8 or IE9. What version do you have and what page, exactly, causes this for you? I'll test it on IE9.
Dudes. Stop trying to recommend other things... they need help, not another recommendation.