[Mike_73]

I just tried my reader under direct sunlight. As the sun is low (but at least it shines), I did several page turns to really make sure. I got lucky. My reader works the same as inside a building.
Sony probably incorporates the manufacturing date within the serial number. Maybe all could compare device serials to see if there is some kind of similarity within the reader numbers having bad screens and the ones that haven't???

What do you all think about that?

Edit: I was thinking about this issue on my way home from work. What do you all think if I were to set up a blog, take all the serials and put them there. We could also post all other issues there too. I mean why can the reader look up words only in english. The programming is there and I wouldn't mind paying for an additional dictionary. But if the offer the User interface in different languages I think they should at least support the languages included. It just looks unfinished. Once enough serials would be there, I could point Sony service directly to the blog instead of hoping that they read all the posts here.