Hi Gabriele Tocci, Can you post the corrected input file here? I also want to do the same thing.<br><br>Jianfeng<br><br><br>在 2011年6月30日星期四UTC+8上午1时35分59秒,Gabriele Tocci写道:<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;">Dear Matt,
<br>
<br>I think the quick workaround works just fine for what I have to do.
<br>Following your suggestion I renamed the bottom layer ions (i.e. Zn->
<br>Znf and O-> Of) and specified the same KIND as the oxygen and the
<br>zinc atoms. Then of course I added add the CHARGE and the WILLIAMS
<br>sections to the newly specified (fixed) ions. This solved the problem.
<br>Thank you very much for your help.
<br>
<br>Cheers,
<br>Gabriele</blockquote>