Hi, I'm new with this tecnology. I bought Leap motion almost a week ago and I'm unable to use it. When I open any app, appear a message that say that my device is not connected. But that is not true, because in the window "device status" all the bars are green. Also I can't do a right recalibration. I reach at least 70%. I've tryed almost 20 times before give up. I've watched the tutorial video on youtube and my procedure is correct, but I can't turn the area green. The blue ball jump here and there without any logical sense. Someone could jelp me, please?