What is the means of ...fsync failed in NtrExl... in a single point calculation of Gaussian 98, it not finish the convergence and appears that message. Thanks a lot, Gloria Dr. Gloria I. Cardenas-Jiron ---------------------------- Departamento de Quimica Fisica, Facultad de Quimica, Pontificia Universidad Catolica de Chile, Casilla 306, Correo 22, Santiago, CHILE. Fax:(56-2) 286.2219