I was wondering what to set the frame rate setting to. I really have no idea what my goal should be. Perhaps someone in the FS community has a similar system to mine and can advise.
1.8 Gig Athlon
512 mb DDR 333 ram
GeForce 5700 VGA with 256 ram
set it at 35 fps, that should be fine
jelami uses a good setting, I use 27-30.
If you make it unlimited you don't gain anything but you do use up power that can be used for the performance of other tasks, clouds, traffic, scenery etc.
If you can get it 24-28 is more than enough .