I will try tomorrow here, but maybe We'll need more specific instructions to ensure I do what I should do

.
I used
this (now page is down, I have to use Google's cache to see it now, that's weird) I don't know who did it, but what is for sure it's I changed myscreensavers

(It's your Kindle 3G too, isn't it?).
And of course, thank you for spend your time on this.