PROBLEM:
   A critical error could emerge during CAM postprocessing with version NX
   5.0.5.3.

   This error appears only seldom, and is associated with circular
   interpolation, generating the wrong information in the part-program that
   can lead to part, tool, and machine damage. The problem occurs during the
   postprocessing phase, not during the generation of the path.
   
   REMEDY:
  
   There are three possible solutions for this.
  
   1. Use a higher NX version

      Using versions NX 5.0.5.3 MP2, NX 5.0.6.3, NX 6.0.0.24, NX 6.0.1.5, or
      higher, will eliminate the problem.
  
   2. Use a previous NX version.

      Use NX 5.0.4.1, or a previous version of NX 5. If an installation
      of NX5.0.5.3 is needed, it is recommended to have a separate
      system with  NX 5.0.4.1 for postprocessing.
  
   3. Continue using version NX 5.0.5.3.

      It is recommend turning off circular interpolation generation during
      tool path generation so that no arcs will be generated.