User communications through messsenger 4.7 is sudently coming down

From: Paul (anonymous_at_discussions.microsoft.com)
Date: 04/29/04 

Date: Thu, 29 Apr 2004 05:51:11 -0700

Hi,

When Messenger 4.7 user is talking with another, sudently receive error message: "This message can't be sent to all user" and this message is not delivery properly.

Could someone help me?

Thanks,