hello i want to ask, I have a little problem on the computer drivers. I have an acer aspire z5710 (all in one PC). yesterday I upgraded the OS to Windows 8 without installing any drivers, all went smoothly. but if I run a game or 3d software programs, graphics running slow, probably because I have not installed the NVIDIA driver. then I download NVIDIA drivers for gt 240m windows 8 64bit from the NVIDIA official website, and tried to install it, and the result is "NVIDIA installer can not continue, this graphics driver cloud not find compatible graphics hardware". these things I experienced while trying to upgrade the NVIDIA drivers in windows 7. and I tried this tutorial nvidia forum https://forums.geforce.com/default/topic/513621/installer-cannot-continue-the-graphics-driver-could-not-find-compatible-graphics-hardware-installer-/ and succeed in windows 7, but can not in windows 8. what should I do?