Get rid of an additional password prompt after Gnome login to unlock the default keyring when you changed your login password

If you get a password prompt like the following when logging on to Gnome on Ubuntu Linux your login password might differ from your keyring password file (~/.gnome2/keyrings/default.keyring):

An application wants access to the keyring 'default' but it is locked.

So to get arround this and have the default keyring unlocked when logging on, run seahorse (Found on the menu via System → Preferences → Passwords and Encryption Keys), right click on the keyring and select Change Password to set it to your login password.