I can`t help you with your Problem, but let me say that you have the most high-end system i`ve ever hard of.
I thought I had I nice PC with a GeForce4400ti, 512MB DDR RAM and AMD Athlon XP 2100+ ...
2.5Ghz, Radeon 9700, 1GB memory , wow.
I wish you luck with getting BF to run ...
