From: Paweł Kędzierski (
Date: Wed Jul 28 2021 - 06:05:27 CDT

Dear Hamish,

I experienced similar problem some time ago when my molecule was
actually two disconnected fragments, so I advice to check if you have a
single connected entity and no missing bonds in the PSF file.



> ------------------------------------------------------------------------
> *From:* <> on behalf of
> Hamish Swanson <>
> *Sent:* Thursday, July 22, 2021 10:30 AM
> *To:* <>
> *Subject:* vmd-l: FFTk GUI unresponsive
> Hi all,
> I am currently trying to optimise 3 specific angle parameters that I
> am developing for a small, charged molecule (23 atoms). To do this I
> am using FFTk with vmd version 1.9.4.
> I find that the GUI freezes with the status running and then remains
> unresponsive, this persists for extended periods (even overnight). My
> input files are okay, and I have been able to use this plugin before.
> Does anyone have any insight or ideas as to what might be the problem?
> Many Thanks,
> Hamish