I had a dual boot which had Ubuntu 14.04 with the latest Nvidia driver installed, so far, so good. I formatted my hard drive and reinstalled Ubuntu 14.04 64-bit, but after I installed the Nvidia proprietary graphics driver I got a flickering screen, the same as in the video at this link: https://www.youtube.com/watch?v=4xVhGhCZBzk
I've tried reinstalling three times and the same thing happened. Before I had everything installed without any graphics bug. I need help to see what is happening. Could it be the iso that I'm using? I also tried the kernels 3.17, 3.18 and 3.19, but that didn't fix it.