I am trying to use the cturtle binaries on ubuntu to experiment with gazebo&#39;s new features.  When I run `roslaunch gazebo_worlds empty_world.launch` I get this error:<div><br></div><div><a href="http://gist.github.com/430689">http://gist.github.com/430689</a></div>

<div><br></div><div>In trying to debug this we have tried to run this on two different macbook pros running ubuntu lucid in parallels and on a laptop running lucid that has an ati x1300 moble all with the same result.</div>

<div><br></div><div>Any ideas would be appreciated.</div><div><br></div><div>Thanks,</div><div><br clear="all">~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>William Woodall<br>Graduate Software Engineering<br>Auburn University<br><a href="mailto:w@auburn.edu">w@auburn.edu</a><br>

<a href="mailto:wjwwood@gmail.com">wjwwood@gmail.com</a><br>256-345-9938<br>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
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