rem: var server = accountManager.findRealServer(userName,hostName,serverType); 
add: var server = accountManager.findRealServer(userName,hostName,serverType,0); 
context: function AccountExists(userName,hostName,serverType){  var accountExists = false;  var accountManager = Components.classes["@mozilla.org/messenger/account-manager;1"].getService(Components.interfaces.nsIMsgAccountManager);  try {        var server = accountManager.findRealServer(userName,hostName,serverType);        if (server) {                accountExists = true;        }  }  catch (ex) {        accountExists = false;  }  return accountExists;}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/fbcddd3920e9ba8265c07092fb39540d19b27f10/AccountWizard.js/buggy/mailnews/base/prefs/resources/content/AccountWizard.js