I followed the screensaver hack in this video
http://www.youtube.com/watch?v=4xXr9...eature=related it worked great and I had the custom screensavers working fine. When I tried to update to 4.1 I got the U006 error at this point I made the mistake of using restore to factory default settings from the kindle itself this meant that now I had no screensavers at all just a blank screen when it was sleeping. I have been unable to find out if there is a way to get the kindle with screensavers back to the appropriate "pure" state so as to apply the 4.1 update. I tried using the runme file from earlier in this thread but I only used it after I had returned to factory default so alas it did not work. Any tips? Is there any other info you would need?