I'm not sure if it is just how I'm going about things but I prefer to use the Recent Posts view & one thing I seem to be missing is the little number next to the What's New tab which tells you how many new Posts there are, that way I could just glance at the screen to see if there was anything new whereas now it seems I have to refresh by clicking the What's New tab.
On the old forum it had a bit to do with the signal because when the signal was good, new posts would just fall in, then at other times I only had to mouse over the tab & they would fall in, or at worst I had to click to force them to fall in.