<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>editconf</TITLE>
<META http-equiv=Content-Type content="text/html; charset=windows-1252">
<META content="MSHTML 6.00.2723.2500" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Dear Peter,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>It is definitely not normal to have a system size
on </FONT></DIV>
<DIV><FONT face=Arial size=2>one direction (y) egual to zero. You better go
back to </FONT></DIV>
<DIV><FONT face=Arial size=2>your initial coordinates and check up the
</FONT><FONT face=Arial size=2>procedure </FONT></DIV>
<DIV><FONT face=Arial size=2>you used to generate the conf.gro where most
probably</FONT></DIV>
<DIV><FONT face=Arial size=2>the problem </FONT><FONT face=Arial size=2>is
.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Xavier</FONT></DIV>
<DIV> </DIV></BODY></HTML>