Having problems with 3d graphics

[oDEIMOSo]

I`m having problems with my graphics all of a sudden , only simple programs are working and compiz fusion just dosn`t work at all now !!!! Can someone help me ???????

[northern lights]

Can you please post the output of

sudo lshw -C display

Thank you.

[oDEIMOSo]

This is what i got when i put in the code .
PCI (sysfs)
*-display UNCLAIMED
description: VGA compatible controller
product: NV31 [GeForce FX 5600]
vendor: nVidia Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a1
width: 32 bits
clock: 66MHz
capabilities: pm agp agp-3.0 vga_controller bus_master cap_list
configuration: latency=32 maxlatency=1 mingnt=5

[northern lights]

Run

sudo apt-get update
sudo apt-get install nvidia-xconfig nvidia-settings
sudo nvidia-xconfig
sudo /etc/init.d/gdm restart

The last line might be superfluous.

[oDEIMOSo]

ok my games and other things are working again , but my compiz fusion is not , and when i try to play some shooter games my monitor says out of range .

[northern lights]

Can you repost 'lshw -C display'? Since now you should be fine. Can you also post the output of

cat /etc/X11/xorg.conf