Messenger shuts down after opening email

Everytime I go to my hotmail/live email account it makes my Windows Live Messenger sign out and then shut down.

"Windows Live Messenger

Windowss Live Messenger has enounctered a problem and needs to close.

We are sorry for the inconvenience.

If you were in the middle of something, the information you were working on might be lost.

Please tell Microsoft about this problem.

We have created an error report that can send to help us improve Windows Live

Messenger. We will treat this report as confidential and anonymous.

What data does this error report contain?

                                                                             Send Error Report              Don't Send"