Color Loss. I have had an Olevia LT27HVX for 1.5 years. It was great until yesterday. It made a

Question

I have had an Olevia LT27HVX for 1.5 years. It was great until yesterday. It made a really (really) loud screaching noise. I turned it off and when it came back on all the color is washed out - like sephia. I reset the factory defaults etc but can't get the color back. Also, the Hue, Brightness, Sharpness controls seem locked. I can get to the adjustment bar with the remote but the I can't move the bar??Suggestions?Thank youSimon