" Under changes to Microsoft's licensing terms, buyers of retail copies of Vista will only be able to transfer their software to a new machine once. If they want to move their software a second time, they will have to buy a new copy of the operating system. " -- news.com

Congratulations Microsoft for giving again arguments to people who (still) think you're the Evil Empire.... Buy Vista but don't change computer twice, even it dies. Wow. And don't upgrade your motherboard.