Cannot turn page in ADE

[default397pwrojwppb]

I have installed ADE 4.5.11 on my new notebook and transferred my ebooks. When I open ADE I can only see the cover of the ebooks and cannot read. When I try to turn the page nothing happens. Only when I close and open again ADE the page is turned to the next. What happens? Please help

[defaultqq96z2ax8zza]

same here. the only way to turn the pages is to resize my window for every page that I need to turn. but it simply does not make any sense.