Hmph. I've never noticed it before, though that doesn't prove it hasn't happened of course, but after filing Scotts debugger related fix (3.2 release image, with Kom & seaside) any seaside related notifiers end up at the back of the window stack.
And to cap it all I currently have a locked up image for no reason I can make out right now. Foo. Oh, it's still responding perfectly well to seaside web-browser input...
sigh.
tim