Safari 進 hotmail.com

最近剛轉來用Mac OS X tiger
發現一個問題
用Safari都進不了www.hotmail.com的登入畫面
讀半天最後顯示

“Windows Live ID is unavailable from this site for one of the following reasons:
This site may be experiencing a problem.
The site may not be a member of Windows Live ID.
You can:

You can sign in or sign up at other Windows Live ID sites and services, or try again later at this site. “

請問一下有人知道這是怎摸一回是嗎？