GTX 570 Drivers Problems with Ubuntu 14.04

Hello everybody,
I have a very big problem with the drivers of my GPU. I have tried every driver that there is on additional drivers (and from the site of the nvidia) but every time I try to boot I get a black screen. I have tryied a lot of tutorials from the Internet and eventually I end up formating my PC :p. If there is anyone who is familiar with all these please reply.
Thanks in advance!