I purchased an OEM copy of Vista because I it was only $95. After reading the package, I learned that I must have an OPK (OEM Pre-installation Kit) to load VISTA on my computer. To get an OPK you must become a member of Microsoft's Partner Program. But I don't think that I,as an individual home user, am eligible to become a partner. I don't have a home business or anything like that, I'm just an enthusiast. I haven't opened the VISTA package yet and would like to return it if the OPK is something that I can't use. Does anyone know anything about this OPK? Thanks, Vanessa Do you want to signoff PCBUILD or just change to Digest mode - visit our web site: http://freepctech.com/pcbuild.shtml