A few more details might be needed here, firstly I'm guessing you build a few systems here and there for clients, yes? If so do you build them all exaclty the same i.e. same motherboards, cpus, RAM, etc.. or do you do custom orders? The thing with sysprep is that if you don't deploy the image on exaclty the same build of machine as you made the image on, it will spit the dummy somthing shoking. It's almost the same as take a hard disk with XP from on older pc and putting it into a new one, sometime it will work but say for example you had a via chipset in the old pc and a super cool awesome nVidia chipset in the new one Xp will die a horribly painful death full of blue screens and reboot loops