Problem with Nvidia driver 331.20 on ubuntu 13.10 (64bit)

This is what I did:

• Pressed Ctrl+Alt+F1




• Stopped lightdm and all that stuff




• Removed nouveau driver and installed Nvidia 331.20 driver

Since then after loging in my computer I get a black screen and I can only get to the place where you log in and press Ctrl+Alt+F1