I have a AMD Duron 800 with 384 meg of Ram and a Voodoo 3 3000 running XP. With FMS the graphics was slow and choppy. Compatibility mode would give a weird errror and got the same results on a Laptop also running XP. Get the file located on FMS homepage written in green.
and also change your color depth from default 32bit to 16 bit. All three of the exe's worked...but only after changing the depth to 16 bit...
Hope this helps