I'm starting to notice this now, where before i didn't notice it. If i click on any topic in the Recent Posts area, hitting the back button does not take me back to the Recent Posts area unless i hit it twice.
There was an update about a month ago that put hash on the url.
For example, You are a the 2nd page of recent post the url is http://forum.jquery.com/recent#home/2. After clicking on one of the artile, the browser shows the details page. When clicking on back button nav, the url shows http://forum.jquery.com/recent#home/2 but the page content is the first page of recent instead of 2nd one.
The bug that made it required to hit the back button twice when you go to a post seems to be fixed, now we just need to hear back from someone that was having issues with the refresh.