Turning phone face down no longer silences call

Just updated to system 4.5.602.MB810 - noticed yesterday that the ringer no longer silences when the phone is turned face down. Don't know if this happened on this update or the one previous (several weeks ago). Is there now a setting to enable this? Using a Droid X

Thanks
-=Z=-

noticed the same here on mine. I couldn't find that setting anywhere, anymore either.