Changing password for "nm-applet" for wireless network keyring
 

I've successfully connected my Fedora Core 8 laptop to my WPA wireless network using GNOME. When it first connected (after entering my WPA encryption key) it said that some sort of daemon - nm-applet (NetworkManager?) I think - needed to add an entry with a password to some sort of default keyring, presumably a restricted password database somewhere on the system and prompted me to choose a password. I'd like to change the password I entered first off as everytime I connect to my wireless network, I have to enter this password. Just to clarify, this isn't the WPA encryption key its asking for, but the keyring password I was prompted to choose after it connected for the first time.

Does anyone know how I do this?

I think this is the root password.

No, I don't think so - it prompts you to enter a new password which can be anything and there is a bar graph at the bottom of the dialogue which measures the strength of this new password. I assume this default keyring is something to do with NetworkManager storing the WEP/WPA encryption key so that you don't have to enter it each time, but you do have to enter your chosen password. My question is, how can I change this password and where is it stored?