How do I generate a backtrace?

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Typically when you experience a "break" of the software, Pathway Tools will put you into the lisp debugger via the "console" window (the window in which you launched Pathway Tools). A debugger prompt will look something like this:

Restart actions (select using :continue):
 0: return from break.
 1: Return to Top Level (an "abort" restart).
 2: Abort entirely from this (lisp) process.
[1c] EC(19):

To produce a backtrace for support messages, at the EC prompt, type the following:

:bt :count :all

Post the results of the command above with your question.