In my experience and from rumours on this forum GeForce4xxx, Gf5xxxx, Gf6xxxx upto Gf7300 should all be able to run UI2 alpha blended with the proprietory drivers.
The new drivers for 7xxx and 8xxx isn't included in LMCE yet and works only after a lengthy manual ordeal fighting LMCE every step of the way for control of the config files.
Can you be more specific about what card doesn't work?