sarah32:
1) download and install the newest version of Messenger Plus! Live:
http://www.msgpluslive.net/download
After that, restart messenger and try again to see if you now can access everything properly
2) If it still doesn't work, uninstall SmileyCentral (Web Search), SweetIM and any other addons you might have.
Then restart Messenger and see if that has solved the problem
3) If it still doesn't work, close messenger again and manually delete the following file (if it exists): "C:/Program Files/MSN Messenger\riched20.dll".
4) Report back if it was solved or not and how