浏览器控件的WebBroser.Refresh“未指定的错误'”是怎么回事？(100分)

我的代码：
webBrowser1.Navigate('http://novel.hongxiu.com/a/36216/');
webBrowser1.Refresh;
执行到第二句时会报错：
---------------------------
Debugger Exception Notification
---------------------------
Project Project1.exe raised exception class EOleException with message '未指定的错误'. Process stopped. Use Step or Run to continue.
---------------------------
OK Help
---------------------------
这个是怎么回事？

webBrowser1.Navigate('http://novel.hongxiu.com/a/36216/');
while WebBrowers1.ReadyState <> READYSTATE_COMPLETE do
Application..ProcessMessages;
webBrowser1.Refresh;

接受答案了.