Hi, How does the Car-Parinello MD code in the ESPRESSO package handle metallic cases? Does it implement the method by Blochl et. al PRB 45, 9413 (1992). Bests, -- Dr. Nichols A. Romero, PhD. 1613 Denise Dr. Apt. D Forest Hill, MD 21050 443-567-8328 (C) 410-306-0709 (O)