[Geforce 7050 + debian + 32lg5000] for 640*480 !!!

[Ciusss]

Hi
This is my first post,
I have problem whit my system, and i think the problem is my tv lg!

Vga -> 7050 with shared memory.
Driver -> I have installed package installed

ii  nvidia-glx                           195.36.24-4                                 NVIDIA binary Xorg driver
ii  nvidia-kernel-common                 20100522+1                                  NVIDIA binary kernel module support files
ii  nvidia-kernel-dkms                   195.36.24-4                                 NVIDIA binary kernel module DKMS source
ii  nvidia-libvdpau1                     195.36.24-4                                 NVIDIA vdpau libraries (transitional package)
ii  nvidia-settings                      195.36.24-1                                 Tool for configuring the NVIDIA graphics driver
ii  nvidia-vdpau-driver                  195.36.24-4                                 NVIDIA vdpau driver
ii  nvidia-xconfig                       195.36.31-1                                 X configuration tool for non-free NVIDIA drivers

Monitor is an LG TV. model is 32LG5000

The problem:
The resolutions of monitor is only 640*480 or more lower....how can I do?

this is may xorg ->

root@lg:~# cat /etc/X11/xorg.conf 
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 1.0  (buildd@barber)  Sun Jun 13 12:08:56 UTC 2010

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0"
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Unknown"
    HorizSync       28.0 - 33.0
    VertRefresh     43.0 - 72.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection