Hi, This might sound crazy but I read my books in epub on Calibre on my computer. Recently, the pages act like adobe reader. They don't turn I have to keep pressing the arrow down button or use the mouse to scroll up and down. The pages don't take over the entire view like before. I've updated to the latest version and its gone. I've gone into preferences and selected the opens for page turns. and nothing. Its driving me crazy. Please help.