AR Drone Toolkit Can't have access to navigation datas

[rubiks]

Hello!
I am using AR Drone toolkit to control my AR Drone 1.0 . Actually , it works but the only thing I achieved to do is to make it fly! I designed a program to read the navdatas but it doesn't works (The program works, but there are only zeros in navdatas fields) . Here is a photo of my program in attached document, has anybody an idea where it comes from ?

[Bob_Schor]

There is a LabVIEW Community for the LabVIEW AR Drone Kit here.  You may be able to find a solution there, or get some ideas about your problem.

Bob Schor