doom3 gl error ?! someone help !!!

hey,

i`m having problems running doom3 on my system , it`s runner console pops up saying it couldn`t find opengl .....
to be more accurate this message :

X..GL_EXT_shared_texture_palette not found
X..GL_EXT_texture3D not found
X..GL_EXT_stencil_wrap not found
X..GL_NV_register_combiners not found
X..GL_EXT_stencil_two_side not found
X..GL_ATI_separate_stencil not found
X..GL_ATI_fragment_shader not found
X..GL_ATI_text_fragment_shader not found
X..GL_ARB_vertex_buffer_object not found
X..GL_ARB_vertex_program not found
X..GL_ARB_fragment_program not found
********************
ERROR: The current video card / driver combination does not support the necessary features.
********************
Error during initialization
Shutting down OpenGL subsystem
...wglMakeCurrent( NULL, NULL ): success
...deleting GL context: success
...releasing DC: success
...destroying window
...resetting display
...shutting down QGL
...unloading OpenGL DLL

i`m runnning on this hardware :
asus p5k
core2duo e6750
xfx 8800 gt 512 alphadog

i`m running on nividia`s 169.21
i`ve also tried degrading the driver to the one given from xfx (167.26) ...... no improvement
i`m (almost!) certain that the card isn`t a faulty one since i`ve ran too many games on it ( half life 2 (all of`em) , crysis , oblivion , cod4 , fear , company of heroes , conflict , nfs prostreet , .......)

not yet, i`ll get on to it .
does anyone know if any of the games i`ve listed is an opengl one ?

update? to which version ? (isn`t 169.21 the latest for 8800gt ?!)
tnx anyway.