no visual output with impromptu_buttons [closed]

edit

After running the installation and execution phase of the impromptu_buttons demo, there are no visuals just an output of cluster values:

finding normals took: 4.27101 for 307200 indices. segmentNorms took: 0.010228 for 15133 indices.

cluster 0 has 52

cluster 1 has 192

cluster 2 has 38

cluster 3 has 14439 cluster 4 has 157 cluster 5 has 42 chose cluster 3 with 14439

I am also assuming that in order to launch the openni driver I should run: roslaunch openni_camera openni_node.launch and not roslaunch openni_camera openni_kinect.launch

Any ideas as to what I could do? I am running under Ubuntu 10.04, diamondback, and openni kinect.