I just went to amazon to grab the latest firmware for my PW3, after confirming that a reboot while plugged in goes to diags. I find it interesting that amazon is now calling the K4 a "5th generation" kindle, while delegating the K5 to a "4th generation" kindle:
http://www.amazon.com/gp/help/custom...deId=200529680
Trouble making up their minds? Facination how the firmware major version numbers once matched the kindle "generation", but apparently that was too confusing for them? Too funny!
Anyway, I have my USB sound dongle doohickey ready to play, so time to get the latest firmware version AND the voice pack installed on my PW3, then rerun that test I did last night. Fingers crossed...