Dear all,<br><br> Thanks for solving my problem but again I have one more problem when I put the pdb2gmx command it shows error like this <br><br>"Program pdb2gmx, VERSION 3.3.2<br>Source code file: futil.c, line: 345<br>
<br>File input/output error:<br>eiwit.pdb <br><br> I am downloading version 4.0.3 but why it shows 3.3.2 and what is the meaning of "File input/output error eiwit.pdb "<br><br>could you please let me know about that.<br>
<br>Thank you very much in advance .<br>
<br>Nitu Sharma <br><br>Structural Biology lab <br>school of life Sciences <br>Jawaherlal nehru university<br>New delhi, India.<br>