Sorry mate, I don't have any answers, but thanks for posting this because I'm interested myself.
I've also noticed that using ati overdrive to clock the card at 950/1425 makes no difference either.
This is with or without ubi logo, with aero on or aero off.
Also changing settings in CCC make only a slight difference to frame rates.
Maybe Luthiers last update with a reference to installing an Nvidia card was a subtle plug to get us all to change.
Cheers!
