Radeon 9700pro (used for the Screenshot) : no Problems, FSAA is selectable and fully functional.
(Catalyst 3.8 )
I don't have the very latest Catalyst 3.9 version though, which even received a hotfix (seems like a bit troubled release, several people reported Problems with it).
Voodoo4 4500 32MB AGP : no FSAA selectable (since the AmigaMerlin 2.9 Driver isn't DX9 compatible, no surprise).
Problems :
- long loading times and HD activity inbetween scenes
- last scene had some form of Z-Buffer error and didn't show the dancing people on the platform
But otherwise, ran fine
With your ProSavageDDR, it might be a Driver problem (I don't think there's a DX9 compatible Driver existing for it as well I guess)
While I can't be sure, I believe manual (Driver-side) selected FSAA on the Voodoo4/5 takes away precious memory that would be needed as Texture Memory instead. Lacking AGP Texturing, problems can be expected, especially in higher Resolutions.
Did you try the "low quality" mode ?
(by all means, it's a wonder the DX9 Demo actually runs at all on those venerable old Cards with the old Driver technology in the first place
)