I and im sure other would disagree with you on that.

When I first got my tablet in perfect working condition I went to google.ca and typed in the search feild " nokia n800 forums" this forum came up and as I browsed through it to find what cool things I can install to make it more functional I came across this section. I looked for the dark shadow to see if I had this issue most were complaining about and didnt see it, I didnt even bother to respond to the topic with a comment "mines good" it would not be very productive or helpful to those who do have this problem. Now that its very noticable and gradually getting darking.. id say myself and others are not imagining things.

If you had this problem all the time, then yours was bad from the get go. I can tell you for a fact the left side of your screen should be as bright as the right and the screen should be sensative on any side of the screen you touch.

I will see if I can take a picture of how it looks and see if the camera can pick it up for those who dont know what it looks like.