SAP Teched My Agenda login fails

Hi,

I have registered for SAP Teched 2008 Bangalore.I got the registration confirmation mail with confirmation ID ,Login Id and password.

I logged in to the SAP Teched website and buillt my agenda including workshops.

The Problem is from November 10th, i am unable to login to my agenda.I am getting the message

"Incorrect Log-in ID/Password".

I wonder what maight be the problem.Is the login blocked by the Teched team for all the users?

Regards,

Sudhir