If I get the Cubase 6 upgrade (I currently have Cubase 5) do I get a FULL Cubase 6 install set? Or do I have to apply an upgrade on top of a full Cubase 5 install? If I have to do an upgrade, does an upgraded version have any limitations compared to a fresh Cubase 6 install? And can anyone vouch for this being a seemless upgrade from 5 to 6 (i.e. not is C6 great, but does it upgrade properly without any errors, etc)?