I am having problems when playing video games, Diablo 3 specifically. It seems as if every time I die or enter a new area, the system changes the graphics card on me. I am using an acer with an i5, intel hd4000, and gt 630m. Now the game runs great when the 630 is doing the work but for some reason, recently it has been changing back to the 4000 in the middle of a game. I have tried disabling the hd4000 in the device manager but then it when i run diablo it seems like its running with no video card as i get .5 fps. I've also done the opposite and disabled the 630m, now when i run the game it will run only with the intel hd4000 at a mediocre fps with everything min. Why can't I just get the game to run from the 630m? Someone help please!