yeey, no crashes anymore. Thank you willus! I wanna ask if I want to put more text in one page, because with default settings it's too big and there is space on e-reader's screen that is unused, so I have to change the DPI, or what to make more text fit in the screen? Text is 2 column if thats matter, PDF files are those which I sent you in private message.

edit- i've fixed the problem