26HF85 flickering contrat problem

I recently bought the 26HF85 HDTV, and for the most part it is great. However, there is one problem. What is happening is it seems to be contrasting too much, like if the scene on the TV changes from lighter to darker, the screen will flicker as it changes its contrast to adjust to everything else that is now onscreen. This is not something that can be fixed by adjusting my contrast, because it happens when the contrast is turned all the way down, and all the way up. This is very annoying because it is so distracting, and ruins much of the experience and picture quality. It just seems that it is contrasting too much or too quickly, whenever something different in color appears on screen, the color of everything else changes. So for example, if the screen is panning around a snow covered mountain that is completely bare, and then a tree appears, all of the snow will change in color because it is now contrasted against the darker tree. Again, changing my contrast level does not fix this problem. Any help would be greatly appreciated!