I have a bit of a strange problem. I have evaluated a number of Linux distributions in a VMware Player environment on my 64 bit laptop.

I compile PyMol using the attached protocol.

The OS is BioLinux v-8.0.5 with Avogadro Version 1.1.1
                                                Library Version 1.1.1
                                                Open Babel Version 2.3.2
                                                Qt Version 4.8.6

The problem involves the Extensions/Optimize Geometry feature with cyclohexane as the test molecule. Cyclohexane as built is a planar molecule, but when I optimize the geometry it remains in a planar conformation. However in some of my test systems the geometry is returned as the chair isomer, which, of course, is correct!

I will make the wild assumption (yes, I know how the word can be broken down) that there is a missing library. Which one might it be? Is any other information needed in order to address this rather nagging problem?

Thanks in advance.

--
Stephen P. Molnar, Ph.D.                Life is a fuzzy set
www.FoundationForChemistry.com          Stochastic and multivariate
(614)312-7528 (c)
Skype: smolnar1

sudo apt-get install subversion build-essential python-dev python-pmw 
libglew-dev freeglut3-dev libpng-dev libfreetype6-dev libxml2-dev

cd /tmp
svn co svn://svn.code.sf.net/p/pymol/code/trunk/pymol
cd pymol

prefix=/home/comp/Apps/pymol
modules=$prefix/modules
export CPPFLAGS="-std=c++11" 
python setup.py build install \
    --home=$prefix \
    --install-lib=$modules \
    --install-scripts=$prefix
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