<HTML><HEAD><META content="text/html; charset=x-user-defined" http-equiv="Content-Type"><style type="text/css"><!--.MailHeader { font-family: "Arial"; font-size: 8pt; color: #000000; font-style: normal; font-weight: normal; text-decoration: none; }//--></style></HEAD><BODY>Hi everyone!<br ><br >First of all thanks to all those who gave me their inputs on phonon dispersion calculations. I am having another problem now. <br ><br >After calculating the Phonon DOS for MgH2 at different alat values when I run fqha.x I get the following message everytime "wrong grid" and the program stops. What does it mean by wrong grid and how do I correct this error?<br ><br >Please reply asap. Thanks in advance.<br >Tuhina<br ><br >---------------------------------------------------------------------------------------------------------------<br >Tuhina Kelkar<br >Junior Research Fellow<br >Physical Chemistry Division,<br >National Chemical Laboratory,<br >Pune - 411 008<br >INDIA<br >Contact: 020-25902298<br >alternative email: tuhina@gmail.com<br >---------------------------------------------------------------------------------------------------------------<br ><br ></BODY></HTML>