Search:

$ sudo apt-get update && sudo apt-get install oclHashcat

after try to run

$ oclhashcat

if good it;s ok if not

Nvidia driver : ...

follow this command.

cat << EOF > /etc/apt/sources.list
deb http://http.kali.org/kali sana main non-free contrib
deb http://security.kali.org/kali-security/ sana/updates main contrib non-free...