I feel  the author of a command is a person who spent most time
in understanding the formula, in figuring out the structure, and in
everything in a programming.  When a bug is reported the author,
usually (s)he will know immediately which lines or which sub routines
to look at.  I would say that to report directly to the author is probably
the quickest way to get the bug fixed, whether the author is a user
or a company.
Ning
--------------------------------
PhD graduate
Statistics Department
La Trobe University
*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/