From: John Stone (
Date: Wed Aug 27 2014 - 11:37:50 CDT

  The 64-bit MacOS X build is considered experimental. The existing
binary was based on a non-official version of Tcl/Tk produced by an
Apple engineer before Apple decided to "outlaw" non-Apple GUI toolkits,
and thereafter stopped contributing to development of open source GUI
toolkits such as Tcl/Tk, etc.

During the beta phase of VMD 1.9.2, I will be evaluating whether or not
the standard versions of Tcl 8.6.x can be made to work with FLTK to produce
a 64-bit VMD. If not, the alternative would be to compile a 64-bit VMD
for MacOS using X-windows APIs rather than the Cocoa APIs that have been the
source of problems between Tk, FLTK, and MacOS 10.9.x...

Your email didn't seem to have any terminal output attached.

  John Stone

On Wed, Aug 27, 2014 at 03:57:24PM +0000, John Grime wrote:
> Hi all,
> I?m trying to use the 64-bit VMD with Mac OS 10.9.4, and I?m getting immediate crashes on VMD startup (I downloaded the VMD binary rather than building it from source).
> As this has been mentioned previously on the mailing list, I tried to make sure that:
> 1. I installed VMD into the Applications directory, rather than trying to run it from the disk image.
> 2. I tried running VMD through Launchpad, running by double-clicking on the VMD icon in Application, and running through the terminal.
> I have pasted some example output from the terminal at the end of the email

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