My LCD from time to time kept doing this:-
viewtopic.php?f=21&t=145755The problem was quite intermittent. But it just got worse, so I got a new one from Renato. No probs since.
My fear was that it may have been the CPU board buggering up - that's expensive. But it was something within the LCD unit - so not quite so bad.
But my screen had been replaced earlier, under warranty, because one of the rows was just a permanent line. The thing that i did notice when replacing the screen above was that there were no grounding tags on that one, but there were on Renato's one.
Hope this has been some help