From: John Stone (
Date: Fri Apr 10 2015 - 16:07:30 CDT

  I recently exchanged many emails with Adrian Roitberg who had
the same Mac problem, and it seems that we have found a short-term
workaround for the MacOS X Yosemite 10.10.2 update problems that
have recently cropped up on certain varieties of Mac laptops.
The solution is to set an environment variable to tell VMD not to
use the MacOS-provided file browser window, and to instead use the
FLTK-based file chooser. This is done by setting the environment variable
"VMDFILECHOOSER" to the value "FLTK". This can be done in VMD itself
in the text console, in the user's .vmdrc file, in the global .vmdrc
file in the bundle, or by setting the environment variable in the
user's Unix shell .bashrc, etc.

To set the variable in VMD or .vmdrc etc, run this command:

To set the variable in bash, add this to .bashrc etc:

After the environment variable is set, VMD will use the alternative
file selector window in the graphical interface, and this should prevent
the problems you've been encountering.

Let me know if the workaround is successful for you.

  John Stone

On Thu, Jan 15, 2015 at 09:38:54PM -0500, nupur bansal wrote:
> Hi,
> I updated my OS to Yosemite and VMD stopped working for me. The window
> appears and I can load molecule, but I can't visualize it. There is no
> error at all.
> I tried VMD 1.9.2, 1.9.1 and even 1.8.7, but everything is behaving
> similarly (not working). I have seen somebody raising the same issue
> before but I couldn't find any solution to it, so asking it again.
> Please help if somebody knows how to fix it.
> Thanks,
> Nupur
> --
> Nupur Bansal
> Graduate student
> Michigan State University

NIH Center for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801           Phone: 217-244-3349