And before one says the the usual "Clear cache, etc." I've done that. It just seems as if the system database can't recognize when someone posts to an already-subscribed thread, and that new response shows up in the UserCP even though that user already knows they posted there. This also persists from what I can tell from Firefox 2.x-3.5.x among different systems. I can't speak for IE 6+ or Opera or Chrome.
