Call of Duty 2 framerate issue

I tried running Call of Duty 2 at 1680 x 1050 and I didn't get a good steady framerate (30-40 dipping into the low 20s) so I decided to lower the resolution. When I did that, my framerate actually dropped! It went down to a steady 25-30, sometimes 5-10. Does anyone have any suggestions as to how to fix this? I have Call of Duty updated to 1.3 and my system specs are:

Intel Core 2 Duo E6750

2 GB RAM

x1950 PRO

I'm not good but heres my Suggestions

1. Turn off Anti-aliasing

2. Turn shadows off or low

3. Detail? Low?

You could try disabling FSAA. That might help. See if this happening all the time or only during heavy battle sequences when there is a lot of smoke and gun fire.

Try changing some of the options. Also make sure that there are no programs running the background, because I am able to play Call of Duty 2 on high settings with FSAA, and getting decent framerates. Your comptuer is way better than mine, you should be fine.

I recommend installing the latest patch for Call of Duty 2.

Also make sure your drivers are up to date.