Thank you! Both of your answers are helpful.
The thread mentioned in jhowell's post gives as solution to switch to paged mode in Calibre. However, this seems more like a workaround solution to me. I definitely prefer to read my books in flow mode. As this solution is proposed by Kovid Goyal, the developer of Calibre himself, I suppose there's not much else that can be done about it. Nonetheless, I still wonder why only a small number of epub books show this partial lines problem in flow mode. The vast majority never exhibit this problem in flow mode, so I guess there must be something in the problematic epub files that provokes the problem which distinguishes them from the problem-free epubs.
As to DNSB's suggestion that it might be related to embedding fonts. I generally embed several of my favorite fonts in the epub files in order to make the reading experience more pleasing, and still hardly any epub books show this problem. So I don't think it might be related to the fonts that are used in the book.
|