Psstt:DropTech said:I already know all that.. by but switching the name, it doesn't switch the physical features of the card (Driver level orientation) thus the game regardless of the name will recognize that the card physically can do 32 bit percision, and because it calls for full percision, it will run 32 bit percision. So the percision thing I don't buy as a viable answer.
A little factoid for you. Back in the early days with Farcry there was a simular issue with banding on FX cards. One fix for that was to change the Device ID to an ATI card. Since Farcry is on the NV TWIMTBP programs me doubts that the device id is doing anything "evil" for NV in HL2.
