@davebiff: I'm using the 'outdated' term as a shortcut to avoid going over the technical details over and over here

. The gist of it is that tweaks needed to be done to deal with FW 5.4.x on the PW1, thus the need for an updated JB

.
@TaoManJoe: You most likely have a 'broken' (in the sense one that the Kindle doesn't like, check the FAQ) file in your screensavers pool.
That 'reset' step in your recap worries me though, what did you mean by that?