From: Axel Kohlmeyer (
Date: Wed Jun 04 2008 - 16:17:25 CDT

On Wed, 4 Jun 2008, Kevin DeMarco wrote:

KDM> Hello,


the symptoms that you describe point towards a bug
in the operating system. have you checked with apple
support? if you use the same version of VMD, it should
work (or fail) the same way unless the operating system
does something different. perhaps they implemented some
simple minded "bugfix" for a buffer overflow...


KDM> I recently upgraged to Mac OS 10.5.3 and now VMD is no longer loading parm7
KDM> files with a long path.
KDM> Specifically, the message I get is: "Users/kevin/Documents/My
KDM> Documents/School Related/UCDavis/Lab
KDM> Work/MDStudies/Topomer/Modeller/Model2/m1mod/300/proGm1mo: No such file or
KDM> directory"
KDM> The actual file name should be "" but VMD is now truncating
KDM> the end of the filename and thus not finding the file. This is affecting
KDM> all recent versions of VMD on Mac OS X X86 on my installation of Leopard.
KDM> Interestingly, I tried running a PPC version, and it loads the file no
KDM> problem, albeit slowly because it's emulated.
KDM> Is there a fix for this? I'd like to run the native version, and not have
KDM> to move all of my work directories closer to the root just to be able to
KDM> load topology files.
KDM> Thanks!
KDM> -Kevin

Axel Kohlmeyer
   Center for Molecular Modeling   --   University of Pennsylvania
Department of Chemistry, 231 S.34th Street, Philadelphia, PA 19104-6323
tel: 1-215-898-1582,  fax: 1-215-573-6233,  office-tel: 1-215-898-5425
If you make something idiot-proof, the universe creates a better idiot.