It can also be a problem with MSN Messenger itself, unrelated to Messenger Plus!....
To make sure and to rule that out (or hopefully to fix it) try the following things:
Basic MSN Messenger option:
Go to "
Tools > Options > Privacy" and make sure that this checkbox is unchecked: "
this is a shared computer so don't store my adress book, display picture, or background on it"
If this was checked then that was your problem, if not, try the next thing...
MSN Messenger bug:
1) Close MSN Messenger completely (right click its icon in your systemtray and choose "exit")
2) Now delete the following folder. (Note: By doing this you will loose all your currently installed Display Pictures, Emoticons and Backgrounds):
\Documents and Settings\<windows accountname>\Application Data\Microsoft\MSN Messenger\<your_MSN_ID_number>\
3) Restart MSN Messenger
PS: to find exactly what your MSN ID number is you can use this program:
http://shoutbox.menthix.net/attachment.php?pid=132217. Just run it and fill in your email that you use for MSN.
PSS: If there is only 1 MSN ID number then don't bother checking it, it will be yours, so delete it