I have downloaded, "calibre" as recommend here, what that has done, is changed any of my books irrespective of type, I then told it to change them to "epub2, and that cures all the down arrow problems, lets me zoom in, and every page is a 1 click button, either big button or down arrow on keypad. So highly recommend calibre, it has made the machine do exactly what I want. Although I would still like the option to remove the stuff at the bottom.