Well, it might be better for you and your techs to make factory images, that way you get a shot at installing drivers and software before the reseal - you could bring the image down, have a tech install the sound card drivers (and any other drivers that don't inject properly), then reseal the box. Also, when you run your generalize pass, are you using the PersistentAllDeviceInstalls setting in the Microsoft-Windows-PnPSysprep section of your sysprep.inf? This is supposed to keep the device drivers from being whacked during the sysprep (regardless of whether or not it actually works with your drivers/software). Maybe you have. In any case, in what you are seeing, a factory build is probably best for these machines and your techs.