HI Blaise,<br><br>Yes I have already checked with VV command that SCIP 2.0 and FIRMWARE 3.3. Laser is working , this is clear from below given.<br><br>vros@powerbot:~$ rosrun hokuyo_node hokuyo_node <br>[ INFO] 1278719145.793650000: Connected to device with ID: H0507384<br>
[ INFO] 1278719145.892535000: Starting calibration. This will take up a few seconds.<br>
[ INFO] 1278719148.983078000: Calibration finished. Latency is: -0.0840<br>[ INFO] 1278719149.806085000: Streaming data.<br><br>while
running rviz command for visulaziation, I got some errors given below
[please note that I am getting the same error if I just call $rosrun rviz rviz]:<br>
vros@powerbot:~$ rosrun rviz rviz -d &#39;rospack find hokuyo_node&#39; /hokuyo_test.vcg<br>[ INFO] 1278719927.352134000: Loading general config from [/home/vinaypilania/.rviz/config]<br>[ INFO] 1278719927.353486000: Loading display config from [/home/vinaypilania/.rviz/display_config]<br>

rviz: OgreGLSupport.cpp:57: virtual void
Ogre::GLSupport::initialiseExtensions(): Assertion `pcVer &amp;&amp;
&quot;Problems getting GL version string using glGetString&quot;&#39; failed.<br><br>I searched for rviz troubleshooting they have reported the same error there saying that some graphics driver problem with ubuntu. here is the linkhttp://<a href="http://www.ros.org/wiki/rviz/Troubleshooting">www.ros.org/wiki/rviz/Troubleshooting</a><br>