I successfully installed drivers to run the Nvidia 750 Ti graphics card in my desktop. Ubuntu ran perfectly for a short time after that. Then, the update manager prompted me to install some updates. I did so and rebooted. After that, when I try to login the screen blinks and goes back to login. I have tried several other guides which solve similar problems but none of them have helped.
I am dual booting Windows 8 and Ubuntu 14.04.