I'm often experiencing a weird behavior regarding wind/speed and aircraft stability.From the attached picture we can read: TRK 199, wind is 064 / 7 (hence there should be tail component)but the GS shown (431) is less than TAS (443). Under these conditions, the airplane tendsto "dance the walz" side to side.In the second picture, as you can see, the right FD light is off, though the switch is on.The behaviour is: the second FD you turn on, its light is off.I took the picture while in crz with the a/p on and fully working.Note: the right/second FD light is on after landing.Well, thanks for any help / suggestions / fixes and expecially for understanding (I hope)my poor english.Last but not least: you did a really great work, guys: keep it rockin'!Erasmo