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    Thanks for the repl;y.<br>
    <br>
    It worked fine in the VM.  The problem is in the native Linux
    installation.  There is no option for 3D acceleration in the install
    process, as far as I am aware.<br>
    <br>
    As I said, tehr was no problem in Debian v-7.2.<br>
    <br>
    <div class="moz-cite-prefix">On 04/19/2016 11:52 AM, Matthew Hyclak
      wrote:<br>
    </div>
    <blockquote
cite="mid:CAO7w0s6BpD9q9Hnc1bJ1+-icvC7d-opprBW6Q0QVg0qa4SMRGw@mail.gmail.com"
      type="cite">
      <div dir="ltr">I ran into something similar this morning after an
        upgrade to Virtualbox. Chrome would launch, then display large
        blocks of white or black and lock up the entire VM. Firefox,
        Terminal, other apps worked fine. Turns out the issue was with
        3D acceleration. I'd check and make sure your video drivers are
        properly configured for your hardware and see if that might lead
        you down the right path - if it's limited to a couple of
        programs it might be trying to exercise part of the graphics
        system that the others don't.
        <div><br>
        </div>
        <div>Matt</div>
      </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On Tue, Apr 19, 2016 at 11:48 AM, Matt
          Simmons <span dir="ltr">&lt;<a moz-do-not-send="true"
              href="mailto:standalone.sysadmin@gmail.com"
              target="_blank">standalone.sysadmin@gmail.com</a>&gt;</span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div dir="ltr">Have you run a full RAM check lately?
              <div><br>
              </div>
              <div>--Matt</div>
            </div>
            <div class="gmail_extra"><br>
              <div class="gmail_quote">
                <div>
                  <div class="h5">On Tue, Apr 19, 2016 at 8:43 AM,
                    Stephen P. Molnar <span dir="ltr">&lt;<a
                        moz-do-not-send="true"
                        href="mailto:s.molnar@sbcglobal.net"
                        target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:s.molnar@sbcglobal.net">s.molnar@sbcglobal.net</a></a>&gt;</span>
                    wrote:<br>
                  </div>
                </div>
                <blockquote class="gmail_quote" style="margin:0 0 0
                  .8ex;border-left:1px #ccc solid;padding-left:1ex">
                  <div>
                    <div class="h5">
                      <div link="blue" vlink="purple" lang="EN-US">
                        <div>
                          <p class="MsoNormal">I have a rather
                            perplexing problem.</p>
                          <p class="MsoNormal"> </p>
                          <p class="MsoNormal">My main Linux computer is
                            a two year old (at least the most recent
                            upgrade) 3.5GHz AMD 64 bit octa-core CPU. </p>
                          <p class="MsoNormal"> </p>
                          <p class="MsoNormal"> Due to a rather
                            catastrophic failure I have just upgraded
                            the OS from Debian v-7.2 to Debian v-8.4.0. 
                            I downloaded the DVD-1 and the checksum was
                            correct.  When I burned it to a DVD here
                            were no problems.  Nor, were there any
                            problems with the installation.</p>
                          <p class="MsoNormal"> </p>
                          <p class="MsoNormal">However, several of the
                            applications that I use on rather a daily
                            basis are acting rather strangely. A case in
                            point is Avogadro, which happens to be a
                            part of the distribution and therefore I
                            didn’t have to compile the source code.  It
                            installed without any warnings or errors. 
                            When I run the application the graphic
                            window is corrupted!   This is also the case
                            with another application, VMD, that I
                            downloaded and installed.  Both application
                            worked without any problems in the previous
                            Debian OS.</p>
                          <p class="MsoNormal"> </p>
                          <p class="MsoNormal">There are other
                            applications that I run, both in gui’s and
                            terminals that continue to run flawlessly in
                            the new OS.</p>
                          <p class="MsoNormal"> </p>
                          <p class="MsoNormal">Now, if that isn’t
                            confusing enough, I tried something else.  I
                            installed the Linux VMWare Workstation 12
                            Player and installed the same Debian 8.4.0
                            in that.  And .  .   . the display problem
                            no longer exists!</p>
                          <p class="MsoNormal"> </p>
                          <p class="MsoNormal">Obviously, I don’t want
                            to have to run the native Linux Distribution
                            in an VM, but I don’t have the faintest clue
                            as to what is going on, nor any inkling how
                            to fix the problem.</p>
                          <p class="MsoNormal"> </p>
                          <p class="MsoNormal">Although I have been a
                            computer user since 1960’s I am an Organic
                            Chemist and neither a hardware or software
                            person.</p>
                          <p class="MsoNormal"> </p>
                          <p class="MsoNormal">I would really be most
                            appreciative of any assistance.</p>
                          <p class="MsoNormal"> </p>
                          <p class="MsoNormal">Thanks in advance.</p>
                          <p class="MsoNormal"> </p>
                          <p class="MsoNormal">Stephen P. Molnar,
                            Ph.D.               Life is a fuzzy set</p>
                          <p class="MsoNormal"><a moz-do-not-send="true"
                              href="http://www.molecular-modeling.net"
                              target="_blank">www.molecular-modeling.net</a>    
                            Stochastic and Multivariate</p>
                          <p class="MsoNormal"><a moz-do-not-send="true"
                              href="mailto:s.molnar@sbcglobal.net"
                              target="_blank">s.molnar@sbcglobal.net</a></p>
                          <p class="MsoNormal"><a moz-do-not-send="true"
                              href="tel:%28614%29312-7528"
                              value="+16143127528" target="_blank">(614)312-7528</a>(c)</p>
                          <p class="MsoNormal">Skype:  smolnar1</p>
                          <p class="MsoNormal"> </p>
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              <span class="HOEnZb"><font color="#888888"><br>
                  <br clear="all">
                  <div><br>
                  </div>
                  -- <br>
                  <div>LITTLE GIRL: But which cookie will you eat FIRST?<br>
                    COOKIE MONSTER: Me think you have misconception of
                    cookie-eating process.<br>
                  </div>
                </font></span></div>
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