Error:Unable to display this Web Part. To troubleshoot the problem, open this Web page in a Windows .....

添加了一些Content Query Webpart ，发布到服务器上去后，发现都显示
Unable to display this Web Part. To troubleshoot the problem, open this Web page in a Windows SharePoint Services-compatible HTML editor such as Microsoft Office SharePoint Designer. If the problem persists, contact your Web server administrator.
引起原因可能很多，不过经验浅显的我是按照这个步骤来排查的
1.打开log检查，它位于：C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\LOGS，按照时间打开一个跟自己发生错误时间相符的log，打开会比较慢~~
2.本人暂时还不会看Log，查找关键字"Error"太多了，又找了几个关键字,"Unable" ,"Unexception" ,"Invalid " 等等...
3.终于找到了
w3wp.exe (0x0DF0)                        0x11EC Windows SharePoint Services    Topology                     
 0 Critical Invalid URL: http:// PublicDomainName.com:3333.  You may also need to update any alternate access mappings referring to http://ServerName:3333. 
Help on this error: http://go.microsoft.com/fwlink/?LinkId=114854 
4.原来我将没有将 Interernt address alternate access mappings .....  去http://go.microsoft.com/fwlink/?LinkId=114854  done.