Originally Posted by mr72
I have not tried Aldiko but I have probably 100 other apps and none of them require the SD to be installed. IIRC Aldiko does require you to tell it where the library is located; maybe this is the problem? I don't remember.
Back to your "previously step 15", which probably a step 17 now, external uSD related. I just glanced through one of my previous post that talking about the requirement of an external uSD.
Can you do a quick test? Remove uSD off your NC, then capture the screenshot using the built-in feature (press and hold power button to bring up the menu).
See if it let you save the image or not.