auh... i think i might have discovered something...

when last i was logged in, i made certain that my SiteMail Notification was set to "off"...
when i logged in a few minutes ago, i responded to an IM, hit "Send", looked up and the SiteMail Notification switched itself to "On".  i turned it off again, responded to another IM, and again it turned itself back on...

i'm going to poke about for a few, logout, clear my cache & then come back to see if it turns itself "On" when i'm not here or through logging in or whatnot because something isn't sticking here...