Scope 5.1 ASIO SCOPE PCI selectable in Ableton Live/Reason

[irrelevance]

Since upgrading to 5.1 win 7 32bit I now have the option between ASIO SCOPE or ASIO SCOPE PCI in Ableton Live and Reason. In Ableton Live ASIO SCOPE idles at 3% on my default project while ASIO SCOPE PCI idles at 1%? I thought that the old drivers would be overwritten in the install so is it possible that I'm switching between old and new drivers within the Live dialog? Cubase only sees ASIO SCOPE or the ASIO direct x Full Duplex Driver (as normal). Anyone else see this or know what's going on?

[garyb]

you shouldn't have the v4 installation still on your computer. if you do, at least rename the folder or old projects will try to load from v4 and that will be a mess. v5 will only work with the new driver. i'm not sure what Live is seeing.