<div>Dear users:</div> <div>When I finished a AFM simulation and wanted to analyze the pdo file ,but g_wham can not run and report errors ,such as :"This does not appear to be a valid pdo file" or "You need to specify a series of pdo files as input", and mailing lists can not give me correct anwser. Please help me! </div><BR><BR><br><a rel="nofollow" class="plink" target="_blank" href="http://cn.webmessenger.yahoo.com/index.php?t=1&to=eWlkPXpoYW94aWl0YzIwMDI-&sig=703fa929658518b2720b087c59cd85f2dabf8844 "><img class="pimg" style="" alt="4" src="http://opi.yahoo.com/online?u=zhaoxiitc2002&t=4&l=cn" border="0"></a><p> 
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