Check your color space:
Go thru your menus until you find color space, once you find it click on it, and if your color space is on SRGB, change it to Adobe RGB.
The reason why you would change it, is because the (Color Gamut)/Color space is the total of all colors it can accept or produce. The Gamut is always smaller than the human vision, it tells you what color you see, but cannot produce. With that said SRGB produces less colors about 256, while Adobe RGB of the two is the larger color space, with a broader range of colors, hence able to produce more colors true to what you see with the naked eye.
Some would argue that SRGB is better depending on your monitor, but try Adobe RGB keep me posted. In my classes at he university, my students have found Adobe RGB, solved the problem.
Usually, this would be the first thing that I would check, in the trouble shooting process.
Keep me posted!
