When I modify or create epub ebooks on Sigil and try to read them on my Nook, the Library listing will not display my book cover. It displays a generic book cover with only the title. This is also true for the Recent Read books. On top of that, Sigil modified or created files boot up very slow even when short works.
In the past my distributor converted my doc files to epub for me. They work fine, but if I modify them, the problems mentioned above occur. My Sigil modified files are validated by the online epub validation site. I do not know why these problems occur. There must be something in code hidden from me in the Sigil file that my Nook has trouble with. Can anyone help out here?
