Thanks.
I just created an account and added my case into the account. But I exited the page by accident so did not log out. Now when I try to log in again, it tells me:
Validation Error(s)
You must correct the following error(s) before proceeding:
You are already logged in
Now, the question is: how do I log out in this situation. Will rebooting the machine work? I do not have the previous page any more. Any one had the similar experience? Thanks.