David, thanks for your quick reply. In my book, the pages you posted are also perfect. The pages in my book that are pixelated are: 17,18,19,20,21,22,23,24,26,40,41,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,70 and 71.
Maybe, you can take a look at these - I swear I am...