There should be a "new posts"-button below all posts on each page so you don't have to scroll up to the navbar to click on the "New Posts" again. A button to the right of "reply"-button should be the most practical solution. That is exactly what I have done. There are several attempts addressing this issue in other threads, but as far as I have seen they have not made a button for the default style. Included in my archive are the original PSD-files (so you can edit the button to your language in Photoshop). Also included is the finished english and norwegian version of the button.