Mail Monitor Icon

Okay, I'm stumped. I just changed icon set on my computer and the old one for Outlook Express was "stuck" in mail monitor. I tried changing it but I don't know where, so I resorted to removing the whole plugin and then putting it back in, and now it displays the ugly default icon for Outlook Express. I even went so far as to change the default icon for the Outlook Express icon and then re-adding the plugin, but no luck. If anyone know how to fix this, I'd be very grateful for some help.

/Anam