COD-BO2 not responding!!!!

[goldjack8]

i have just installed call of duty black ops 2,but whenever i run it,a black screen just appears and when i go to the task manager,it says game is not responding.......can anyone help?i dont tjink its my graphics as i have nvidia 640m and an i7 processor with 8gb ram

 

[The Stealthinator]

Change the resolution settings in the file that saves these settings. That may cause the game to not start if at an unsupported resolution.