I test this new 163.67 drivers and show my results :
GF 7600 GS 256MB,AMD64 X2 3800+
Battle "Allahs Fist":
Fastest/Fastest 44 FPS (drivers 163.44, 41 FPS)
Balanced/Balanced 24 FPS(163.44, 22 FPS)
Fastest/Best 12 FPS (163.44, 12 FPS)
Best/Fastest 14 FPS (163.44, 14 FPS)
Better/Best 12 FPS (163.44, 11 FPS)
Only little improvents