I have spent some time working with this driver and have found an error in the s3t3d2x.inf file. I have fixed the problem with the original driver from the s3 webiste but belive the same issue could be in the driver pack file. The line with the problem currently reads [s3.Mfg] S3 Inc. Trio3D/2X Display Driver Version 5.30.05 Engineering Release = S3Inc, PCI\VEN_5333&DEV_8A13&SUBSYS_8A135333 With it this way you can install the driver but must tell windows that it is a Graphics Driver (this is really when installing manually). If the automatic option is selected then it will not recognise it as the correct driver (this also is a problem during the unattended install). If the line is changed to the following: [s3.Mfg] S3 Inc. Trio3D/2X Display Driver Version 5.30.05 Engineering Release = S3Inc, PCI\VEN_5333&DEV_8A13 i.e. remove the &SUBSYS_8A135333 part of the line, it seems to work ok. Again this is using the original driver form the S3 site but i think it will be the same problem with the driver pack unattended install.