Today I've had my true 1st really scary moment! I’m on holiday in Austria at the moment, and today I was following my son up the T-bar lift with my P2V. No problems, and at the top of the run (about 300 meters away) I rotated the P2V slowly to the right while it was hovering in GPS mode. Having done this I wanted to get in front of my son to film him coming towards me. This is when the **** hit the fan! Whatever input I gave on the RC the P2V went (looking at it) to the left! As the P2V was 300 meters away, and in front of a mountain covered with snow, it was also hard to see it visually. (I got really lucky at 12 seconds into the video..) Facts: - Before takeoff the P2V had GPS lock. - The compass was calibrated one day before at the same place. - At the moment of the trouble the P2V was flying in GPS mode. - IOC had no effect what so ever! I am not sure if the P2V had a course lock as it was to sunny to see the green rapid flashes before takeoff. The only way I could get the P2V back was by going into Atti mode! Small part of the video. http://youtu.be/i8uu_6TVSnA At 1:03 I managed to get back control by going into Atti mode.