The following are not appropriate questions:
Send all questions to ROS Answers or the appropriate mailing list, and report all issues to the issue tracker.
On ROS Answers, do not use answers for discussion, subsequent questions or just updates. Instead, edit your original post or use the comment functionality.
Describe exactly what you were doing or are trying to do, and exactly what, if anything, went wrong. If you say, "rviz doesn't work," we can't help you.
Use a descriptive headline or subject line. Bad: "rviz doesn't work". Good: "Rviz crashing looking for missing .so after latest apt update"
Names and versions of stacks/packages that you're using. "I'm using ROS C Turtle with pr2_simulator 1.1.1 and vocabulary_tree r30294"
Your platform (architecture, OS & version/distro). "I'm running OS X 10.5 on an iBook," or "I'm running Ubuntu Karmic on an x86, with kernel 2.6.31." For Linux, always provide the distro and kernel versions.
Any warnings or errors. Cut and paste them directly from the terminal window to which they were printed.
Please DO NOT re-type them yourself. Small typing mistakes can make a large difference and time wasted.
ROS environment variables (env | grep ROS)
Ogre.log for rviz, if possible (run with rviz -l)