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In samsung lcd monotor colour are not display perfectly its showing white color heavly some gray colours are missing yellow is heavy
If you're really serious about color correction, why not invest in a Spyder Express? Just slap it on the screen and it will determine the correct color levels for your display http://spyder.datacolor.com/product-mc-s3express.php
Monitor might be dying or you bought a bad one. Post pictures of your monitor showing the problem so we can see the problem.