You may recall a posting of mine in another place, where I talked about attempting to upgrade my 15Gig hard drive to a 40Gig one by Ghosting from one drive to the other.
The transfer worked without error, as far as I could tell, but XP refused to boot due to "security violations".
When I finally get time, I'll reinstall XP, meanwhile my nice shiny new 40Gig drive is moudering in a drawer somewhere