Vista - Hotmail Tab in Live messenger TODAY window

Hi, I'm having problem with my xxxxx@xxxxxx account since last year around
October. My problem was the hotmail tab in Live messenger TODAY windows
doesn't display my inbox mails. When I click Today-Hotmail tab It shows sign
up page instead of my inbox. I tried on my friend's computer and same
problem. When my friend sign in with his (xxxx@xxxxxx)hotmail account it
shows up normally. I tested my account on a lot of different computers and
different version of Live Messenger without success. I suspect that my
xxxxxx@xxxxxx account has problem. I wonder if is it because my e-mail
account ends with @msn.com that might of been causing the issue or live
messenger issue.