No. Also, don't need to de-authorize if you reinstall OS X. You only need to de-authorize if you will no longer use the machine for ITMS music, or if you plan to give it away, or you if you plan to have it repaired. A logic board replacement (or possibly processor) would necessitate de-authorization. -- Scott On Oct 30, 2004, at 17:23, Paul Hawkins wrote: > Does deauthorizing the Mac affect the hard drive or the Macs ROM?? One > of the Macs I think I need to deauthorize is a beige G3 that I need to > reinstall OS X onto. > > -- Scott