We got the problem in OWA.
OS:Windows2000 Server+SP4 (Chinese)
Exchange: 5.5+SP4 (English)
There are 2 OWA server for backup, but both of them have the same problem.
After the user fill the authentication information, like NT account and
and selet "ok", users couldn't logon their mailbox. And World Wide Web
becomes strange, even its status is "start" Then, if we tried to restart
but can't work. So, we got to reboot that server.
We already tried to reinstall OWA and even IIS, but still failed.
It was very suffered to us. Please help!!