First, I'm not sure if my problem is with the software I've tried, the OS, or my tablet, so if this in the wrong place, I apologize.
I just recently bought a tablet for my mother to use for reading e-books. The tablet is a Ematic EWT935DK, and the OS is Windows 10, 32-bit.
I looked for free reader programs compatible with Win 10 which would read both Mobi and Epub. So far I've tried Icecream and Sumatra readers. They both work fine as long as the tablet is oriented horizontally, but when I turn the tablet vertically, about 15-25% of the picture is hidden off-screen on the right hand side, and I can't find any way to make the books fit in both orientations.
I've tried searching for a solution to this, but I must not be asking the right question or something, because I can't find anything. This is my first exposure to Win 10, tablets, and reader programs, so I'm pretty ignorant of a lot of things.
Any help would be appreciated. Thx.