ORIGINAL: zeevro
This problem happens to me when I turn on the helicopter and the rudder trim is not in the middle.
Switch it of, center the rudder trim and try again....
That's EXACTLY what it was...during flight I had to adjust the trim on the TX pretty far. I centered it, and the problem disappeared. Thanks!
...another complicated troubleshooting session avoided by people on the forums giving a simple fix [sm=biggrin.gif]