I was just bringing my Phantom into land when it suddenly went vertical about 50 metres and stayed there. I tried all the switches in desperation, the juystickes were doing JS and then it started to move away from me. I felt absolutly helpless as I watched the thing pick up speed but also slowly decending. I thought that it was heading towards housing but it seemed to pitch down a bit and burried itself into the ground. To my relief NO damage. (I have carbon fibre legs on my machine) I have done a advanced recalibrate and the compass but I'm concerned about a setting in the NAZA assistant that is erattic in display. In VIEW/Channel monitor the X1 cursor goes from certre to the left with do apparent reason. Is this normal and what is the X1 channel. Robin