Colors Too Dark when Maximizing

[raybaudi 1]

Hi. There's this interesting thing happening to me. 

I have a dual monitor settting (TV on HDMI + Monitor through DVI-D) on a 1050GTX Ti. 

1) Default image of FS9 when displaying on TV: (strikes me as really dark)

https://ibb.co/ekOGhF

Now if I just drag the FS9 window to my monitor and then drag it back to my TV, the image displays way better (more brightness)

https://ibb.co/jEwDUv

However, if I maximize, it'll reset to the previous dark setting.

Could anyone help me to keep the image as displayed on the second screenshot after maximizing the window?

Thank you,

Regards,