Hello Sue,

use your original files, not the RR ones ! When you have resized your image to a lower size, you've loosed details. Put the image to a bigger will give a poor result ! The system cannot recreate details.

I'm working on my pics for an exhibition in march, i use only my tiff files in the original size. I give it to my local printer shop (it's a good an pro one), and she plays with it lol)

hope this help
Olivier