Having trouble viewing the IDs or nicknames of some of your friends on Yahoo! Messenger? The problem might just be a simple case of one small setting being wrong. Follow these steps to make sure Yahoo! Messenger is set up properly to display a friend's Yahoo! ID or nickname:

1. Select "Messenger."
2. Select "Preferences."
3. Select the "Appearance" category.
4. Locate the "For each contact, show:" heading.
5. Select "Nickname or First and Last name" or "Yahoo! ID" whichever you prefer.
6. Click "Apply."
7. Click "OK."