【求助】Squid Proxy連不上sii.tse.com.tw

各位大大您們好：

小弟用Fedora 3 的 Squid 架了一台Proxy，目前都很正常，但是連到http://sii.tse.com.tw就會出現下列錯誤：
不知道是那邊設定的問題，目前已試過不cache這網站，但還是沒辦法成功。


=========================================
ERROR
The requested URL could not be retrieved

--------------------------------------------------------------------------------

While trying to process the request:

GET / HTTP/1.0
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/x-shockwave-flash, */*
Accept-Language: zh-tw
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Host: 203.74.228.20
Proxy-Connection: Keep-Alive

The following error was encountered:

Invalid Response
The HTTP Response message received from the contacted server could not be understood or was otherwise malformed. Please contact the site operator. Your cache administrator may be able to provide you with more details about the exact nature of the problem if needed.


Generated Wed, 16 Mar 2005 02:14:52 GMT by proxy.lkeng.com.tw (squid/2.5.STABLE8)

==========================================