Top level menu doesn't work on Planning Components Visualizer

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Hi,

I attended the IROS 2011 workshop on motion planning and went through the tutorials. I wanted to do it again myself and haven't had any problems until I tried to select commands from the top level menu on Planning Components Visualizer. I don't think I had any issues at the workshop just right-clicking "Command..." to display the menu, but it doesn't work on my work environment. I followed the tutorial instructions (http://www.kavrakilab.org/sites/default/files/iros2011_ros_ompl_tutorial.pdf). Do I need to do something else to display the menu other than launching the visualizer at the beginning of Section 6? I ran roswtf and didn't see any errors (although there was 1 warning as below):

$ roswtf
Loaded plugin tf.tfwtf
No package or stack in context
================================================================================
Static checks summary:

No errors or warnings
================================================================================
Beginning tests of your ROS graph. These may take awhile...
analyzing graph...
... done analyzing graph
running graph rules...
... done running graph rules
running tf checks, this will take a second...
... tf checks complete

Online checks summary:

Found 1 warning(s).
Warnings are things that may be just fine, but are sometimes at fault

WARNING The following nodes are unexpectedly connected:
 * /ompl_planning->/rosout (/rosout)
 * /planning_components_visualizer->/rosout (/rosout)
 * /pr2_test_right_arm_kinematics->/rosout (/rosout)
 * /rviz_planning_components->/rosout (/rosout)
 * /wall_clock_server->/rosout (/rosout)
 * /planning_scene_validity_server->/rosout (/rosout)
 * /trajectory_filter_server->/rosout (/rosout)
 * /rob_st_pub->/rosout (/rosout)
 * /pr2_test_left_arm_kinematics->/rosout (/rosout)
 * /environment_server->/rosout (/rosout)

I'm running Ubuntu 10.04.3 (x86-64) with kernel 2.6.32-34 and using ROS Electric with arm_navigation 1.0.6 and visualization 1.6.4.