its a bit random one time its 5 min,, other time i spent 20 min then then it go's black like i cant see anything within the window i gotta tab exit and close it with the task manager!! i notice every time this happens my ati manager crashes as well saying something about the adapter resetting ! ive put stress on the card with other game with out this happened yet on here it's every 5-20 min then black screen.