Hi, I want to know how I can replace a device driver on the WinXP CD. If I install my System unattended it doesn't install the Nvidia quadro 4 driver. The original INF on my WinXP CD looks like this: ;NVidia.Nv17GL.2 = "NVIDIA Quadro4 200/400 NVS (Microsoft Corporation)" If I try to use OEMPreInstall and such things the driver will also not be installed because (I think because) the system has allready the *.inf file. Can someone help me? Bjoern Wolfgardt