Oblivion HDR/Bloom trouble.

This is a bit of an odd one. Now, I have the latest drivers installed to my knowledge on my Geforce Go 7600, and Oblivion installed. My problem that the bloom and HDR settings don't seem to be on in all areas. In the dungeons they work fine...notably when I take the torch out. However, when outside on the landscape at nighttime..Obllivion seems to be missing a shading pass....things are extremely dark, and look as though they are not being lit properly. Even when I take the torch out, or an item that grants the user a light source, there is zero bloom. It definitely doesn't look how it should when I consider what Oblivion looked like when i played it on my brother's desktop.

I also seems to be having trouble with bloom in Deus Ex: Invisible War. If anyone has any ideas as to what may be going on, they would be much appreciated.

 

try updating oblivion and updating your videocard drivers, if that doesn't work try windows update

 

Unfortunately I have updated everything with latest drivers. That is what is so strange; the bloom/HDR works in some places, but not at night, in the slightest. As I say, it seems like a shading/lighting pas in missing in some sections, which would suggest a driver problem :/