i don't think the x800 xt PE should have been included, as the 6800 Ultra wasn't, but the pro should have definately been in there
either way...i'm now very curious to see if this is applicationd etection, or even if DX9 can be forced by some external application such as PStrip or something?
and if it is fact that the FX's CAN NOT PHYSICALLY RUN the HL2 dx9 path....
then either HL2 is optomized for ATi cards beyond belief(bad for valve/ati), or the GF:FX cards have been lying and aren't fully DX 9 compliant(could put nvidia out of business)