It happened to me only once and the problem lasted for about 2 minutes.

However I've seen many cases on the Internet where people didn't have access to their account for 7+ days. That is a very big problem, especially if the Gmail account is your primary mail account.

If you get the "Disabled account" or "Locked out" message you can get help here

https://mail.google.com/support/bin/answer.py?answer=53897

and here

http://mail.google.com/support/bin/answer.py?answer=61805

Your comment: Name: Website: E-mail:

Enter the string of characters appearing in the picture: Remember Me