[cybmole]

I continue to have issues with K for PC latest version ( on Windows 7 64 bit) & Amazon continue to be clueless about the cause.
whenever I buy a new book there is a strong change that it will NOT appear in K for PC, unless I de-register & re-register my install.

I have only 1 instance of K for PC , only on one PC, & have removed all traces of older versions and all references to other installs on the Amazon manage kindle pages.

I used to do complete un installs, until I discovered that un registering & re-registering was usually sufficient to temporally fix delivery issues

in today's case, I watched the K for PC program launch after buying the book , watched the book cover Icon appear and a blue progress bar fill beneath it, & then saw the book vanish before I could open it

I reproduced this several times by forcing another delivery from manage my kindle pages. called up A. ( since thy say call them when I email about the issue) but all they could suggest was uninstall / reinstall the software. rather than do that AGAIN ( have done it several times before & have also cleaned out app data, registry etc.) , I just did the registration fix as explained above & got my book OK.

has anyone else experienced similar problems or found an explanation.

I did notice, after the event, that my "My Kindle Content" folder was set to read only - could this be a factor . It also seems to happen with AZW3 books more so than with .MOBI? My windows install had no file assoc. for AZW3 so I set one a few days ago, to link that format to K 4PC - does not seem to have made any difference to delivery issues .
I am wondering if amazon's server sometimes sends the book file but not the associated key file(s) and thus the download fails