I recently compiled MOPAC 7 on my Silicon Graphics Personal Iris 4D35
 workstation, intending to do some MNDO ESP charge calculations.  However,
 the test of this subroutine produced ESP charges reported as *nan* or not
 a number.  There were no error messages when I compiled the program, or
 in its execution.  Does anyone know of any modification to the Fortran
 that need to be made for an SGI workstation for the ESP calculation to
 run correctly?
 Beverly Bendiksen  bbendik : at :
 Calgon Corp        voice(412) 777-8862
 Pittsburgh, PA     fax(412) 777-8714