Calibre now failing to convert Kindle books
I've updated Calibre on my machine, installed the K4MobiDRM plugins as per instructions i located online, but no new amazon kindle purchases i make will convert successfully any longer.
The message which i receive reads as follows:
"Error: No key found. Most likely the correct PID has not been given. C:/Program Files/Amazon/Kindle/content/BOOKNAME_EBOK.azw"
Sure would appreciate any help resolving the issue. I can't find anything when searching your forums, as i have looked, even if i've missed an essential post on this from the past.