Hi, This is my system configration winxp sp2, 2k sp4 amd athelon 64 Geforce 6200 turbocache forceware driver version 91.47 I installed Rivatuner and followed the instruction but It's not showing the quadro cards to emulate in the list below 'PCI DeviceID settings' item. The only thing it's showing there it's my GeForce card and some device ids like 16E, 16F etc. Am I doing something wrong or it's the card that's not supported. I am about to buy a new card and if rive tuner will give me even 10% performence boost in my 3d application then I don't mind buying the best geforce one. Please help.