Oooh just saw this. Thanks - works wonderfully.
I have a wireless router, but it's always a pain to set Kindle up on it - I have to turn off all the security to get Kindle to connect. When it's connected once it's fine from then on. However, I performed a factory reset and then never got around to removing my network security to start all over again.
Now I don't have to and I can finally register my Kindle again.
Karma for you.
Regards
Caleb