The 'export picture of scripts' button works fine for me - you get to it by right-clicking the scripts area.
This is what I always do, but the production editors of the journal complain that the quality is too low. I'm not sure that print-screen is better.
What I do is Control-Alt-PrintScreen, paste the image into an art program, remove the scripts area, select the script, copy it and paste it fresh, and save. It's a bit of a hassle though...
This doesn't improve things were much.