Ian sent a very interesting link today about Microsoft Windows Vista and their DRM stuff.
If you're a CREATIVE professional, Microsoft will more or less make sure that you can't work. If you're a sound artist or scientist using things like S/PDIF or optical audio i/o, Vista will disable your subsystems. Just think - you've invested thousands of euro in your studio, you get Vista, and nothing will ever work again.
So, apparently Microsoft does not want you to be creative. They only want you to be a consumer...