I have mentioned this before. If I turn off the power overnight without attaching the charger, the display is milky white and the colors are washed out after turning it on. Leaving it charging keeps it warm and maintains the contrast. This morning it took a full 40 minutes for the display to return to a dark rich color. Is this normal or should I return it. I can live with this if this is normal. My phone and my wife's iPad doesn't do this.