I have a similar problem in that my browser always shows the address up top as
www.pprune.org/ irrespective of which thread I'm looking at. If I press refresh, it returns back to the pprune home page so to look at the most recent post, I have to "shift" and click to get the thread in a new browser window and then press refresh. I also need to use this method if I want to cut and paste the thread address somewhere as it is only listed in full when I open in a new window...