(Maya 6.5)
Hi,
depending on the size of the fluid container and the strengh of the fluid-own attribut settings you have to take higher values than default. Try a magnitude of 50-100, set the attenuation to a small value like 0.15.
U can also go to ur fluidShapeNode, and under Display check VelocityDraw. Sometimes it's helpfull to see, where influence is taking affect within the container.