i got the AKG startup screen to work on mine. i used the mac itunes plugin to load the startup screen. i couldnt find out how to do it with notmad explorer.
when i first loaded the bmp it didnt seem to work, came up for a split second at the end of the shutdown sequence, but after a day or so turning the jb3 off and on though normal use it worked and now shows up at the beginning of startup after the EAX screen.
cool