Whenever I try to sign in I am getting a error code on my screen. The error code is 80072745. The version of Windows Live Messenger that I am using is 2008. I think this is the latest. I had just recently upgraded it and it was working well. Suddenly it has started giving me trouble. I had also tried to run a repair setup but still it is not working. Can anyone help me here. How can I fix the problem.