LinuxQuestions.org - How to install a NVIDIA Geforce 9500GT?

hy all,

it's to many times I'm trying all the way to setup my new GPU by NVIDIA, a Geforce 9500 GT but with no success, so I decided to ask for your help

is there anyone able to tell me how to do in my case? (which is the right driver and how to install it)
now I've installed:

Kernel - "Non-free Linux 2.6.24 modules on x86/x86_64"
binary drivers: "nvidia-glx-new"

but if I check the "restricted driver manager" it's empy, while with my old configuration, with a old nvidia geforce 4, there was a "nvidia" driver set as "in use".

if it could be usefull, I paste my" xorg.conf":
____________________________________________________________________________

# xorg.conf (X.Org X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
# sudo dpkg-reconfigure -phigh xserver-xorg

Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "it"
EndSection

Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
EndSection

Section "Device"
Identifier "Configured Video Device"
EndSection

Section "Monitor"
Identifier "Configured Monitor"
EndSection

Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
EndSection

Section "ServerLayout"
Identifier "Default Layout"
Screen "Default Screen"
EndSection

___________________________________________________________________

thanks in advance.