This happened to me once. I guess it was because of "'Account Lockdown: Unusual Activity Detected'". I was using a different account for my adwords and used to

This happened to me once. I guess it was because of "'Account Lockdown: Unusual Activity Detected'". I was using a different account for my adwords and used to login on multiple accounts from the same box or simultaneously use gchat with one account, adwords editor with other and open mail in yet another one. Result : My account was blocked for a day and I felt cut out of the world. This is how I felt - http://umangjaipuria.blogspot.com/2007/03/what-does-google-know-about-me.html http://umangjaipuria.blogspot.com/2007/03/what-does-google-k... I went through the same frustration, just had to wait for 24 hours. You can try this if you haven't already - http://mail.google.com/support/bin/answer.py?answer=46346&topic=12783 http://mail.google.com/support/bin/answer.py?answer=46346&#3... Pick Not listed then I think 1. unusual behavior and 2. certificate issues could be a cause.