Try deleting your contacts cache (note: these files are only temporary files which are stored on your computer, they are safe to delete)...
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.
If that is unsuccessful, try completely removing Windows Live Messenger and all related data by following
CookieRevised's guide.
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