We have serveral users all using Windows 7 who are have issues with Messenger (2.2.0). All their contacts can disappear and when the try and add them back there are duplicates and some missing.
Also during a chat, one name can be displayed on the chat window heading and a completely different user in the chat text area. We had r&r'd the client on one machine, and seemed to be ok for a few days, but then started having the same issues? Any idea's?