Here is the log info from installing the latest nvidia driver 256.44 for quadro which is why i installed the legacy driver.
Using: nvidia-installer ncurses user interface
WARNING: The NVIDIA Quadro NVS 55/280 PCI GPU installed in this system is
supported through the NVIDIA 173.14.xx legacy Linux graphics drivers.
Please visit http://www.nvidia.com/object/unix.html
information. The 256.44 NVIDIA Linux graphics driver will ignore this
WARNING: You do not appear to have an NVIDIA GPU supported by the 256.44 NVIDIA
Linux graphics driver installed in this system. For further details,
please see the appendix SUPPORTED NVIDIA GRAPHICS CHIPS in the README
available on the Linux driver download page at www.nvidia.com