Sorry, tried to bump the one and only other thread concerning this but it seems to have vanished now.
Either way:
ASM works with nVidia and not with ATI
Has anyone found a fix yet?
It's kind of a difficult question to answer because most gamers did not purchase the new Spidey due to it being an extremely crappy port.
And most of the gamers I've met on Steam won't go near Radeon and insist on nVidia cards.