By the way, I tried turning epub userstyle off, is there any way to turn it on again(without reflashing whole reader)?
I also cant seem to get working corrected version of Czech.js, I tried to change file in beta tester pack, but it doesnt have any effect, and when I reflashed again with prs+ czech language stayed there. Do I have to reflash it first with original 1.1 US firmware and then prs+? EDIT: I figured it out, I was putting betatester pack on internal memory instead of card

.
Thanks