before a flashed my nn900 i had comix running, i was using it to read the walking dead.
anyway it was perfect, clear as mud. it did have a issue with auto rotate but i diabled that feature. i couldnt really tell if it was a comix issue OR the comic layout, once disabled it was perfect.

but as many already know the screen is just to0 small for comics, in some situations i had to use the zoom feature becuase of the layout of the comic itself when it did a double page spread.