I am very new to this so hopefully it is something simpleI.
My quad copter when in stab or alt hold modes is drifting east. Landing and re arming with the quad in a different direction or changing yaw has no effect, still drifts east.
When i use auto modes the quad sits fairly stable and follows wp fine.
I have re calibrated compass and accelerometers a few times and had a good google with no luck.
Any ideas would be much appreciated.