I have a problem with lighting (I think) CGO lines, e.g.,

lineSet = [
   LINEWIDTH, 0.30,
   BEGIN, LINES,
   VECTOR, 0.0, 0.0, 0.0,
   VECTOR, 1.0, 1.0, 1.0,
   END,
   ]
cmd.load_cgo( lineSet, 'LineSet' )
 
For some reason, lines appear crisp from one angle, and strangely distorted from another angle (it's about 180deg for both -- think dark vs. light side of the moon: there is a crossover point). Here are links to two screen shots that show the problem:

http://dl.dropbox.com/u/1209050/Screenshot-1.png
http://dl.dropbox.com/u/1209050/Screenshot-2.png

I have tried respositioning the lights (in the screenshot they're at the 6 faces of the box, marked by blue balls), but it doesn't change the viewing angle at all, only the shade of the lines. I have tried messing with the specular and spec_direct settings, but that only caused the lines to disappear completely (or rather, turn completely white). I also tried changing the ambiance settings, but that only changed the hue of the lines.

I would really appreciate some help if anyone knows how to fix this. Thanks!

Oh, and for reference, here's my system information:

This Executable Build integrates and extends Open-Source PyMOL 1.3.
 OpenGL graphics engine:
  GL_VENDOR: NVIDIA Corporation
  GL_RENDERER: GeForce 9500 GT/PCI/SSE2
  GL_VERSION: 3.2.0 NVIDIA 195.36.24
 Detected 8 CPU cores.  Enabled multithreaded rendering.
 
I recently went pack to 1.3 as I was getting __very__ slow load times with 1.4.

Cheers,
Stephen

---------------------------------
Stephen J. Bush
sjbush@unc.edu

PhD. Candidate | Bioinformatics & Computational Biology
Tropsha Lab |  UNC Chapel Hill