I'm a new Ubuntu user. I need to find a driver for the NVIDIA GPU on my Asus K53SC laptop. The system doesn't find any additional drivers. When I try to install the graphics driver from the Software Center, it says that it's missing some files and displays some internal errors. I also get errors when installing software updates.
I tried Ubuntu 13.10 and now Ubuntu 12.04, and it's all failing. I want to stop using Windows, but these problems don't help. Which version of Ubuntu is more compatible with my system: https://www.asus.com/Notebooks_Ultrabooks/K53SC/#specifications? My laptop has a 2nd generation Core i3 processor. I need step-by-step instructions.