This has happened twice to me today, and I have never seen it before. Occasionally, when I refresh a page, I get directed to a previously viewed page. It isn't one I just looked at, so it isn't just putting me back one page.
Searching didn't show anything about this, so I thought I would drop the powers that be a line.

helps to know what page you were on and where you got redirected to.

Sorry, haven't checked this in a while. Unfortunately, I don't remember which page specifically I was on. I know that I was in Other, hit refresh, and I was sent to a page in gaming. This also occurred with an Other to DVD & Home Theater Gear. If it happens again, I will get the thread numbers.