Once again-lag...

[Lebedis]

Hello,
There are plenty of lag concerning topics,but
I decided to create my own (to get more attention
and to be more specific )

My system is Windows XP Athlon +2.7GHz 768 RAM
nVidia GeForce FX 5600 128MB. I fit in the min. req.
And I have quite more RAM than needed so Penumbra
SHOULD go smoothly,unfrotunately it isn't. I get lag
often even when starting on a fresh and cool PC (so
overheating shouldn't be the problem) I tried minimum
requirments,treid suggested,tried various settings actually-
nothing worked...I tried downloading older nVidia drivers (84.21 iirc )
nothing... What is my problem ? I had none with Overture...
P.S I was not able to find that "Threading optimization " or what ever
it is called... Any suggestions ?