Just to revisit this -- the mystery of why the CWS and autopilot works so well on Mark's system and not for me is spelled a-c-c-e-l-e-r-a-t-i-o-n.

On a plain FSX SP2 system the CWS is broken and the autopilot will not hold a VOR/GPS track until the ALT HOLD switch is engaged in the alt hold mode.

On Acceleration, they all work as they are supposed to.

Just wanted to clear up this mystery that has been puzzling me.

Dutch