I've got a VPR Matrix, and i wiped the hard drive and now want to install the windows xp operating system back on it. I don't have the vpr matrix disks. I tried my msdn xp install disk, but the product key from the oem version(a sticker on the side of my machine) is invalid with that xp. Basically, i have a liscense key from VPR Matrix, i want to put a copy of XP, that i own, back on a computer i own. Any advice?