Can someone please explain me if the weird changes in color temps in quite a few situations (backlight flickering/auto-adjusting?) are normal for Dells:

www.dropbox.com/.../dell_test2.mp4

I know it is hard to see on the video recorded with bad camera (it also auto-adjusts to lighting env with no way to disable), but in general, there are 3 things happening:

1. Camera auto-adjust to amount of light that comes from display - IGNORE
2. Small changes in overall lighting due to scene changes, these are normal to any display - IGNORE
3. Weird color temperature changes on the display, sometimes completely unrelated to scene changes in the center of the screen. You can notice how the general brown background here:
http://i.imgur.com/NZ2ArzQ.png
(red rectangle - the spot I recorded in camera, changes in color temperature/tone can be seen on any part of the bg)
changes its tone/temperature. Skip to 0:45 to see it more clearly - for a few seconds there is no changes in overall colors on the scene in the center, but you can see background swapping its colortone. That is not a camera trick or anything, this is what I see. Happens in Firefox too so it is not an application issue.

Now, this wouldn't be an issue if it happened just under these specific conditions, but I often notice how the color temperature/tone changes during me switching between windows and such. At first I thought my eyes playing tricks on me when I change window with leading dark tones to white tones or return eyesight from darkish environment to the screen, but no, I clearly can see whites overall taking slightly reddish tint when these weird changes in color tone happen. They are subtle, yes, but noticeable.

What is interesting is that:

1. I could not notice such changes under preset: Movie, Multimedia, Game, Cool.
2. If I record an on-screen video (raw RGB24) of the browser window and try to play it fullscreen - I don't see such effect.
3. Not related to refresh rate.

What possibly could cause this? I'v never seen anything like that on Acer/Samsung.

S/N: CN-036WJX-74261-51Q-6FPL