In CFS3, when I switch to autopilot, the plane (Halifax B2) begins to wing walk? That is the plane pivots on the z axis fore and aft until the plane reaches max velocity and then the plane becomes stable about all three axises. At the same time the ailerons are working pitching the wing tips up and down too! The rudders are moving left to right which would cause this rotation, how can I fix this?

Hmm well I tried and in the tuning section switched to general aviation fs2004 and fixed.