Hi all, I am following the tutorial for plotting electrostatic potentials for APBS Tool (http://www.poissonboltzmann.org/apbs/examples/visualization/apbs-electrostatics-in-pymol). Everything is normal, nevertheless it crashes when I try to plot the solvent accessible surface, no matter the Solvent accessible surface and Color by potential on sol. acc. surf. are checked. What should I suppose to do? Thank you so much.