On Wed, Apr 28, 2010 at 11:06 AM, John Pascal <John.Pascal@mail.jci.tju.edu> wrote:
I am having difficulties defining NCS parameters using the GUI
interface (Mac 10.4.11; phenix 1.6-289).

Please update to 1.6.1.  I think all of these problems have been fixed already.
 
Phenix will automatically select NCS restraint groups and use them
during refinement.  But if I edit the automated selections to my
liking then click on Update and Save, the refinement runs with the
original parameters unedited.  I have tried reading in a ncs.param
file, but it does not get read during the refinement run.  Also, an
intermittent problem with this GUI is that I am not allowed to "Add"
a new restraint group.  When I click this button, it just clears out
the selections on the last group, and does not add a new group.  Any
ideas?

Intermittent how?  It doesn't happen with the current version, but it's possible this was also fixed recently.

-Nat