Enhancements / Additions:

• New grid tool, sgc, to convert structured volume grids to unstructured grids.

• Corrected the sm script to correctly set the DYLD_LIBRARY_PATH for the Mac OSX 10.5 executables.
• Corrected fatal bug when deleting trimming curves.  This was also causing problems when trying to translate, mirror, rotate, or scale trimmed surfaces with the duplicate toggle Off.
• Changed the Edge Grid display so that it draws the edge grid only after it has been generated.  Previously it was drawing the edge grid when a toggled On or Off, even if no edge grid had been generated.
• Corrected bug that when deleting a trimmed surface that was in a Group, the resulting untrimmed surface was no longer in the Group.
• Corrected bug computing surface orientation using CAPRI data.
• Corrected memory leak and bug when reading and processing the point spacing information from IGES files.
• Corrected bug related to edge grid generation and gluing.  This was causing problems with displaying trimmed surfaces.
• Corrected fatal bug when when trying to write the surface grid and script if the file name was too long.  There is no limit on the length of the file name.

• Trimming IGES-tagged periodic surfaces.