I am registered partially-sighted, but use Kindle 7 on this MacBook Air (Monrwew) for hours every day to study languages. To turn a page, one must find an arrow-symbol near the margin, and click on it. However, the arrow and its surrounding border are in very thin, faint line. To make it all more difficult, the touchpad-pointer does not change to a pointing hand when it hovers over the symbol. The time cannot be far away when I shall not be able to see the symbol. Is there any way of changing the settings so as to turn pages by some other means ? My apology if I am not in the appropriate forum !