Great! Let me know how that goes tomorrow. John On Dec 8, 2010 7:49 PM, "Jared Marshall Glover" wrote: Ok I just updated my ROS tree and rebuilt pr2_gazebo and it seems to be working now =) I guess it may have been in some bad state since I haven't recompiled everything in a couple of months. Thanks for looking into it! I'll check tomorrow to see if it's a similar problem on the other MIT machines, or if other people here just forgot to turn on the projector in simulation ;) -Jared Quoting John Hsu : > Just did an update and upgrade to latest...