Please post more details including the following:<br><ul><li>What is the exact command line?</li><li>What group do you select as a "continuous solvent"? I know it might sound weird to ask this but what I learned while teaching students is that these questions really should be asked when there are problems.<br>
</li><li>Which version of Gromacs are you using?<br></li></ul><br><div class="gmail_quote">2010/5/3 priyanka panwar <span dir="ltr"><<a href="mailto:priyankapanwar20@gmail.com">priyankapanwar20@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><span style="font-family: arial,sans-serif; font-size: 13px; border-collapse: collapse;">I am using Gromacs for Simulation of Insulin.I have generated most of the files but unable to generate the ions.pdb file.The system is becoming idle after the Selection command. A line on the command prompt appears as "replacing solvent molecule with Na" and remains as such for many hours. Is this step really takes too much time or I am doing something wrong. <br>
Thanks</span>
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