strange glitch renders game unplayable

[Tommy Gun]

You know, i had similar problem, i still do, if you have a laptop, constantly keep it hooked up to the power point.

secondly, wheni used vista with penumbra, its like giving a 2 year old a shotgun. I change to xp, and it like a commando grabbed it.

another point, where did you download it from (gamersgate direct2drive?), and have you put on any patches?

Thridly, Go to your options and check what effects have affects on the frame rate. eg motion blur, triliner etc. change them to you liking.

Hope this helps.