WS64, can you please share with us your setting? I couldn't figure out how to tell the FBK to use the default paragraph space setting when it is missing in the books. In my case, I think when the books have proper spacing setting, it will be displayed fine, but when they are not, the lines between paragraphs are right next to each other, they don't even have the regular line spacing. And, do you guys have problems on Library view? mine has no margin on top and bottom, and all the font size and spacing are messed up on Library view too.
I like this FBKindle a lot because you can instantly switch back to Kindle's system and vise versa. but I couldn't find any good detailed manual on how to configure and use it.