From: John Stone (
Date: Thu Oct 22 2009 - 17:10:14 CDT

  I haven't previously seen the kind of problem you're describing.
Does it occur for you repeatably, or only some of the time? Does it
only occur with the specific DX file you're using? You should indeed
be able to select any isovalue you like by typing it into the text input
field on the left side of the isovalue slider.
Let me know if you have solved this or if you still need assistance.

  John Stone

On Mon, Oct 19, 2009 at 01:25:32PM +0200, wrote:
> Hello
> For unknown reason I cannot enter an arbitrary isovalue for the
> display of the electrostatic potential isosurface. I can only chose
> from the values which are set by the slider (e.g. -0.354...) in the
> graphical representations panel. If i enter a number (e.g. -1) and
> press "apply" (or enter), the value I entered (e.g. -1) disappears and
> the default value which is closest to the one I entered (e.g.
> -0.354...) appears. How can I enter exactly the isovalue I want? I am
> using VMD 1.8.7 with APBS 1.1.0 on Mac OS 10.5.8.
> Thanks.

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