New official Nvidia video drivers released yesterday... nothing specific to WAR listed, but someone might play with it and see if there's any diff.
178.13
I installed this on my work computer (Vista) and got much better performance today. Playing it yesterday, I had bad performance and for a little while my video card just shit itself, throwing textures and the whole screen out of whack.
If any of you guys are rocking multiple monitors, be sure that in the nvidia control panel, under 3d settings / manage 3d settings / global settings that you set "Multi-display/mixed-GPU acceleration" to "single display performance mode".
This is not the default setting. This might be changed if you have a new fancy monitor (maybe even that first gen 8800 GTX) that does some video output so it 'detects' a multiple monitor, even if you don't have more than one hooked up.
I finally remembered to try this last night and it made a big difference for me. Eliminated a lot of the stuttering.