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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Hi Kishore,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">&nbsp; I had trouble getting 3D to work a while back, but not just vtk. It was a driver issue, someone on a forum was able to advise that an earlier nVidia driver
 was better than recent releases &#8211; and the driver &#8216;degrade&#8217; worked for me. Not sure if this is your problem, but can you get 3D working at all? I used some demo 3D movies and 3D viewer app from nVidia site to test.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">&nbsp; Regards, Dave<o:p></o:p></span></p>
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