touchpad, mouse wheel, and page up and down are the only ways to scroll! no touchscreen or at least arrow keys. nope, only full pages at a time. what a bunch of crap. how can touch pad work but not touch screen?! im not saying i do it but things like this are why people pirate. when pirating offers better functionality than the real product, it almost seems foolish to obey the law. companies who sell their e-books to be used with ade are probably losing money to pirating as a result. adobe, please revise your software to add this basic functionality.