升級hotmail至250M空間以後

我發現10次中有9次我都無法登陸hotmail信箱了。錯誤提示如下：

The .NET Passport service is currently unavailable at this Web site for one of these reasons:

• The site may contain an error or be experiencing a problem that affects the .NET Passport service.
• The site may not be an official .NET Passport-participating site.

You can:

• Return to this site later and try to sign in or register again.
• Sign in or register for a .NET Passport at another .NET Passport participating site. .NET Passport Site Directory

這到底是怎麽回事呢？請高手指點一二。先謝過了！