Hello Ill try to make this short and simple.
I came back to leagues after 3.5 and the game wouldn't load So i re installed it After the re install Every time im in a match My Other monitor turns black and after the match My main mointer goes VERY dark almost unviewable so every time i want to play again i have to squint find leagues of the task bar and close it. After i close it the screen comes back to normal.
My video card is up to date

Bump

even when i go to the store Just black -_- i cant play the game anymore

I have fixed it due to (God of persia)
http://euw.leagueoflegends.com/board...k+screen+store