Prototype close problem

[zxcasdqwe]

Hello,
When i start the prototype game on my windows 7 it runs with no error but when i play it mor than 2 or 1 hour it stops runnig but the music keep running , i mean that the graphics stop and and the sound don't.

 

[skaz]

First, make sure your game is fully patched. Update all drivers including graphics driver.

Log temperature of your GPU and CPU while playing game and take note of any dramatic increases when the game stops running correctly.