Hi, I had posted this once before in the wrong section, hope to get more answers this time.

I have this random phenomena where a cell, exterior and interior, will suddenly go all black in all textures. Outside you can still see the sky but indoors is hopelessly dark.
Moving from first to third person view or moving your viewing angle will sometimes make it go away, but often it persists.

I am guessing this could be a video card issue? I am running an NVIDIA card with XP. This seems to happen mostly after having played a character for awhile, not in newer saves as far as I can tell.
Any input would be great, thanks.

It may be the fog bug (some interiors with fog set to 0.0 are not rendered by certain video cards). Best easy fix is getting and running http://code.google.com/p/mlox/wiki/Tes3cmd#Get_tes3cmdexe multipatch