<DIV></DIV>
<P>Dear Dr Anderen,</P>
<P>I have tried with about 7000 k-points in the IBZ but I got the same problem. It crashed at </P>
<P>x opticc -so -up</P>
<P>with the message indicated eaelier.</P>
<P>Thanks for your help</P>
<P>C M I Okoye</P><BR><BR><P>Chukwuemeka M. I. Okoye,</P>
<P>Department of Physics and Astronomy,</P>
<P>University of Nigeria,Nsukka,</P>
<P>Enugu State,NIGERIA</P>
<P>234-042-771611</P><p>
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