[bob47]

Does anybody know why this might be happening?

Occasionally on this web site, only rarely on others, I hit the browser back arrow and nothing happens. Hit and hit and hit, wait and wait and wait, and nothing. But if I go forward, for example advancing to the next page of the thread, I can hit the back arrow twice and it backs up 2 pages perfectly.

Is it perhaps that the original page changed or got refreshed and doesn't look the same to the browser (IE 9) when I try to back up?

Thanks

Bob