It is a picture of something - Lexmark T634 Laser Printer

Something snapped inside the set. Check for some capacitor that has just about blown itself up - they go out with a bang sometimes.
U might smell something burnt inside - follow your nose.

The viewfinder of your camera covers about 95% of the picture that is shot. So you should see less in the viewfinder than what is on your photo. So not only to the bottom, but also on top and on the sides, should be more on the picture than in your viewfinder. If the whole picture really shifts, and something is not on the picture, of what you saw in the viewfinder, something must be wrong with your camera. Was it ever dropped? because that could have shifted the pentaprism in the viewfinder. Or the mirror just behind the lens could be a little off?
As long as your pictures cover what you would have in the picture, and they are sharp, don't bother.

Of course the D800 is full frame and the DX 18-135 is a DX. The only thing the D800 needs to do is switch to DX mode. The Nikon FF camera's can work with DX lenses. (if the lens has a chip) You still have a nice 15 Mp picture on the D800. But if something was wrong with the lens, you should have an error on the display.
Please to check the lens, switch to live view. You should see something. If not, really something can be wrong.
Carful go to taking a picture step by step. Be sure the lens is correctly put on the body. But before you put it on, look is all contacts are clean shiny and there are no dents.

You need to right click on a picture and move ur mouse over option "open with" and choice something like windows picture viewer. If it not in that list then choice "default program" and choice something that opens the picture. You have somehow changed your default picture viewer to Explorer.

You may have the mode dial set to something like "night pictures"...The ISO may be set too high...the white balance may be on something other than "Auto WB".

1) Connect it to your computer.

2) Open up "My Computer", look for your Sansa listed there, and double-click on it.

3) If you see something called something like "Internal Memory", double-click on that.

4) You should see either a "Pictures" or "Photos" folder. Copy your pictures into there.

there should be something in the menu where you adjust things. seems as your in wide mode or zoom mode. should be something there to adjust the picture.

May have something to do with the switch to digital tv that occurred back in Feb.

IT IS SOMETHING IN THE LCD ENGINE SONY HAD A LOT O PROBLEMS WITH COLORS APPEARING AFTER A COUPLE YEARS USE WISH I HAD BETTER NEWS

Prolly the power cap is blown.