screen goes dark when i click for a second(every time i click)

[Trinche]

as said in the title, every fu***** time i click with my mouse the screen goes dark for a second and then it comes back, its really annoying, so far ive played 5 minutes of this game and i allready love it, hope someone can help me, i can upload a video or any kind of info about my computer you may require.
thanks