[PyMOL] PyMol display problem on Windows 10

[Yufeng T. <yuf...@gm...>]

Hi there,

I installed PyMol on a new laptop (Windows 10, within Anaconda3) and
run into a display problem, which does not exist on a Windows 7
laptop.

Basically, the displayed molecules does not have the 3D visual effect
and the colors are very dark. Only after I apply "ray", it shows
normal color but then of course I cannot rotate the molecules without
loosing the normal view. The same problem occurs to PyMol version 2.3
or 2.2 from the Schrödinger channel or the Gohlke's unofficial
packages. Tried to change color space, light position, and all options
under Display menu and none seems to change the results. Installed
PyQt and the problem persists.

I tried the same installation process on an older Windows 7 laptop and
all looks normal. Attached are two screen copy of the display before
and after applying "ray", they can also be viewed from
https://1drv.ms/f/s!Ao4PGr4qLLsZjQiafUTIaUFTyxNn

I guess it is a problem of the GUI. Any hints are greatly appreciated.

Yufeng