Hi I have a PRS-300. I have adobe PDF and epub files on it. At any rate the silly thing seems to have fixed itself with no further help from me! I had to go to bed last night and left it plugged into the computer. All is apparently right as rain now. I guess it was a malfunction of not being fully charged yet. Next time I'm just going to close my eyes and not look at the screen when I plug it in and not look again for a few hours! Thanks again for your help and thanks for the link.