it was named Mobipocket
actually ive updated the thread over at irex
ive narrowed this down to it will work on the CF either:
a) from another book
OR
b) directly from the encyclopedia
issues is opening directly, moves prc into a sub folder (which it doesnt on internal)
this then stops the searching from other books working
only solution ive found are:
a) keep on internal
b) have 2 copies, one of which you dont open
btw, i copied the Mobipocket directory from the internal one, so the config/manifests are same.
this is 2.12