I have had this same problem also with the force feedback on my saitek evo FORCE! Everthing else has been working fine, throttle works. I just do not get any force, rumble or shaking...
Just re-installed the latest drivers now. What I do have working which was not is the test forces in the properties for the stick and also forcetest.exe is working with all forces.
I will give it a whirl in BS and see if I have force in game.