I have problem with graphic driver, when i install intel hd graphic, it doesn't work, when look in device manager next to it, it have yellow triangle with black exclamation point inside. does this mean it not working? i also tried to install ATI driver but it doesn't let me install, error. i have laptop samsung intel core i3, with graphic integrated. so i have graphic integrated mean i can install ATI driver right? if not then how do i install ATI? any suggestion?