Installed a fresh Debian Wheezy 64bit install, then installed the latest kernel and kernel headers from backports
sudo apt-get -t wheezy-backports install linux-image-3.14-0.bpo.1-amd64 linux-headers-3.14-0.bpo.1-amd64
installed fine and rebooted the machine then installed the nvidia driver using:
sudo apt-get -t wheezy-backports nvidia-driver
then created a Xorg config file: