hi, when im using the default airbus in fsx my rudder pedals work ok on the ground but soon as im airborn they dont work, i have autorudder unchecked in the settings. have i missed something else .
No, that should be all you need for them to work, ensure the autopilot is off.
Good tip, although my rudders still work when the autopilot is engaged, but then I'm flying small a/c at this time (DC-3, Goose, and Beaver)
Only thing I can think of is to make sure your yaw damper isn't turned activated.