First: i have played this game for a long time and never have any issues with it, but now suddenly im getting crashes everytime i start up cod waw.
EDIT: fixed the crashed its because of nvidia 

second: i don't know if anyone is having this issue: when i go to fullscreen, i can't adjust my brightness in the game, it doesn't do anything

third: my cursor appear everytime i start the game in fullscreen and it won't let me move and select anything in the menu with the in-game cursor until i press the windows button then go back to the game and i can able to select and move my in-game cursor. Its really annoying and irritating
EDIT:Fixed