<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;">I have a difficulty to perform the optimization of volumen in the silicon (also on Ge) using the TB-MBJ potential.<br><br>I run Optimize.job, but in one of the cycles get stuck in lapw0!<br><br>Can you help with this, any ideas?<br><br>PDTA: There appears no error, just stagnate in one cycle<br><br> <span style="font-style: italic;">José A. Camargo Martínez</span><br><br></div></body></html>