<div dir="ltr">I would recommend trying a fix proposed a while ago on this list, which has worked on MacOS: in the file Tcl/Viewer.tcl, make the change shown here -- <a href="https://trac.macports.org/browser/trunk/dports/science/xcrysden/files/patch-Tcl-Viewer.tcl.diff?rev=140738">https://trac.macports.org/browser/trunk/dports/science/xcrysden/files/patch-Tcl-Viewer.tcl.diff?rev=140738</a><div><br></div><div>David</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Apr 9, 2016 at 10:03 AM, Gavin Abo <span dir="ltr">&lt;<a href="mailto:gsabo@crimson.ua.edu" target="_blank">gsabo@crimson.ua.edu</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div bgcolor="#FFFFFF" text="#000000">
    <div>On your Windows system:<br>
      <br>
      What X server are you using [1]? Xming?<br>
      Do you have the &quot;Enable X11 Forwarding&quot; box checked in PuTTY [2]?<br>
      <br>
      On the cluster:<br>
      <br>
      Is X11 forwarding (like X11Forwarding or ForwardX11 or
      ForwardX11Trusted) set to Yes [1,3,4]?<br>
      What Mesa (or OpenGL) did you compile XCrySDen with [5]?<br>
      Did you try &quot;export LIBGL_ALWAYS_INDIRECT=1&quot; [6,7]?<br>
      <br>
      [1]
<a href="http://superuser.com/questions/119792/how-to-use-x11-forwarding-with-putty/119908#119908" target="_blank">http://superuser.com/questions/119792/how-to-use-x11-forwarding-with-putty/119908#119908</a><br>
      [2]
<a href="https://wiki.utdallas.edu/wiki/display/FAQ/X11+Forwarding+using+Xming+and+PuTTY" target="_blank">https://wiki.utdallas.edu/wiki/display/FAQ/X11+Forwarding+using+Xming+and+PuTTY</a><br>
      [3]
<a href="http://lists.mindrot.org/pipermail/openssh-unix-dev/2004-March/020658.html" target="_blank">http://lists.mindrot.org/pipermail/openssh-unix-dev/2004-March/020658.html</a><br>
      [4]
<a href="https://padraic2112.wordpress.com/2007/07/09/bad-security-201-remote-x-sessions-over-ssh/" target="_blank">https://padraic2112.wordpress.com/2007/07/09/bad-security-201-remote-x-sessions-over-ssh/</a><br>
      [5] <a href="https://trac.macports.org/ticket/41320" target="_blank">https://trac.macports.org/ticket/41320</a><br>
      [6]
      <a href="http://www.democritos.it/pipermail/xcrysden/2014-August/001642.html" target="_blank">http://www.democritos.it/pipermail/xcrysden/2014-August/001642.html</a><br>
      [7] <a href="http://www.straightrunning.com/xmingnotes/trouble.php#head-19" target="_blank">http://www.straightrunning.com/xmingnotes/trouble.php#head-19</a><div><div class="h5"><br>
      <br>
      On 4/9/2016 9:14 AM, Elio Physics wrote:<br>
    </div></div></div><div><div class="h5">
    <blockquote type="cite">
      
      
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        <p>Dear all,</p>
        <p><br>
        </p>
        <p>I have compiled and configure XCRYSDEN successfully. However
          when I type xcrysden, and after a while, the window does not
          open and I get the error:</p>
        <p><br>
        </p>
        <p>Running on platform : unix<br>
             Operating system : Linux<br>
          Package ImageMagick&#39;s convert: /usr/bin/convert<br>
          Package ImageMagick&#39;s import: /usr/bin/import<br>
          Package Gifsicle: /usr/bin/gifsicle<br>
          Package Ppmtompeg: /usr/bin/ppmtompeg<br>
          Package Babel: /usr/bin/babel<br>
          Package Xwd: /usr/bin/xwd<br>
          Executing: /usr/lib64/xcrysden/bin/ftnunit<br>
          X Error of failed request:  BadWindow (invalid Window
          parameter)<br>
            Major opcode of failed request:  3 (X_GetWindowAttributes)<br>
            Resource id in failed request:  0xffffffff<br>
            Serial number of failed request:  786<br>
            Current serial number in output stream:  787<br>
        </p>
        <p><br>
        </p>
        <p>Can anyone help me on this? I am using PuTTY to access the
          cluster where XCRYSDEN is.</p>
        <p><br>
        </p>
        <p>Thank you</p>
        <p><br>
        </p>
        <p>Elio moujaes</p>
        <p>University of Rondonia Brazil<br>
        </p>
      </div>
    </blockquote>
  </div></div></div>

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<br></blockquote></div><br></div>