From: Ravinder Abrol (
Date: Fri Oct 06 2006 - 17:57:57 CDT

Hi John,
I am running it on Windows platform and since the problem is not
reproducable, I don't have a test case yet. This has happenned to me with
many files. I am loading bgf (Biograf) files. Could they be causing the
problem inconsistently?

On Fri, 6 Oct 2006, John Stone wrote:

> Ravi,
> I've never seen or heard of this sort of problem before, to me that
> sounds like some sort of memory corruption issue. Do you have a test
> case that reproduces the problem with high probability? As you can imagine,
> thousands of VMD users perform the operations you're describing. The only
> question is what specific representations they use and what other things
> they might be doing with their structures. Which platform are you running on?
> I actually wonder if it's a system level runtime library issue of some kind.
> John Stone
> On Thu, Oct 05, 2006 at 01:20:28PM -0700, Ravinder Abrol wrote:
> > Hi All,
> > This problem doesn't occur consistently, so I don't know how to fix it.
> >
> > With a fresh VMD start, when I load a protein with helices, all helices
> > are displayed correctly using all graphical representations. After a few
> > interations of deleting molecules and loading new molecules, a few of the
> > helices (not all) stop being displayed (almost randomly) in [Trace to
> > NewCartoon] representations. [Line to Licorice] representations display
> > fine. When I close VMD and start a fresh session, everything is ok again.
> > I have encountered this problem in both VMD1.8.4 and VMD1.8.5. I haven't
> > tried older versions for this.
> >
> > Any solutions will be appreciated.
> > Thanks in advance,
> > Ravi

 Ravinder Abrol
 139-74, Beckman Institute
 Division of Chemistry and Chemical Engineering
 Caltech, Pasadena, CA 91125
 Phone: 1.626.395.8143
   Fax: 1.626.585.0917