That's probably it for some features but it still sounds like "You have to use IE5 or higher to see this site" to me. Also, some features have been blocked for

That's probably it for some features but it still sounds like "You have to use IE5 or higher to see this site" to me. Also, some features have been blocked for a long time for no apparent reason, for example background image on search. It worked from the day one (when you changed the user-agent), there is nothing scientific about it, yet it is still blocked years later.