Resolution

If the screen that appears when waking from sleep or exiting the screen saver shows the user's previous full name, and the correct password is not being accepted, use these steps:

OS X Mountain Lion

1. Hold the Option key while pressing Return. This will display the Name and Password fields.
2. Type the user's current full name or account name into the Name field.
3. Type the user's password into the Password field.
4. Press Return.

OS X Lion

1. Hold the Option key while pressing Return to update the user's full name that is shown.
2. Type the user's password.
3. Press Return.

After you have unlocked the screen with these steps, the correct name will be shown on subsequent attempts to wake the computer or exit the screen saver (until the next time the user's full name is changed).