Strobelight - LightBoost Utility for AMD/ATI and NVIDIA

[Mister]

I just installed strobelight, rebooted and started it. It works fine on Windows. I enable it (ctrl+alt+plus) and disable it (ctrl+alt+minus) and it works: I notice the change of color, contrast, etc..
However, when I am playing Counter Strike Global Offensive and I alternate between enabled and disabled the colors remain the same, as if strobe would not work when I'm playing. Is this normal? Shouldn't the colors change in game as well? How can I check if strobe is actually working in game?

Also, I have noticed that if I modify my gamma setting in nVidia control panel it does not affect the game. I tried setting a really high gamma value (100%) and it worked on Windows, but when I tabbed to the game, gamma was default again...
Edit: I just googled this issue and apparently is a nVidia problem that has persisted for years. The only way for desktop colour settings to affect the game is to run it in windowed mode. I have enabled/disabled strobing in windowed mode and it works, I see the colour change. Taking this into account, does this mean that strobing was working in full screen mode and the only thing not being applied was the changes in nVidia control panel? I could accept that.

My setup is:
BenQ XL2411T (@ 120 Hz)
i7-950
GeForce GTX 580
6 GB DDR3 1333 MHz