Ask your friend to try the following:
quote:
Originally posted by CookieRevised
What you can try in the mean time is deleting your contacts cache:
1) completely close Messenger (right click the tray icon and choose 'exit').
2) Remove the directories:
\Documents and Settings\your_username\Local Settings\Application Data\Microsoft\Windows Live Contacts\your_windows_live_id\
\Documents and Settings\your_username\Contacts\your_windows_live_id\
Note: some directories might be hidden, so make sure you have enabled the viewing of system and hidden files in Windows Explorer's options.