Flock of Birds recognized, but no data sent

[sjroorda]

Using the trial version of Vizard 2.51 (running Windows XP) to see if it addresses my needs, I try to add tracker functionality. I have a Flock of Birds (Ascension), and it is recognized by Vizard, but no data is received. Are there any known problems with this tracker?

Neither an example program works, nor the script made using the tutorial.

My code:

sensor = viz.add('flockofbirds.dls');
sensor.reset();
viz.tracker();

Manually triggering events (data = sensor.get(); print data) prints only non-changing values.

Output of Vizard is
flockofbirds.dls - WorldViz Flock of Birds Driver v0.1

Using FoB with another program works well!