Gene,

One problem with your data set was the use of the $NOQUOTE option.
Extran in particular has been know to behave erratically when that
option is used. The main problem with your data input, however, was the
B1 line which had the number of time steps (the NDT parameter) set to
zero. This was your B1 line:

* NDT NINPUT NNYN NNPE NOUTS NPRINT NPOLL NITER IDATEZ METRIC INTPRT
B1 0 0 0 0 1 0 0 4 0 0 0

Regards,
Bob Dickinson
CDM Inc.