Ace_The_Fire

Article says: "Apparently, Vista does a sweep of all computer hardware over 30 times every second to make sure no one is trying to leech a digital video signal through a modification."

This clearly implies that these sweeps occur all the time not only when you play DRM content. If this is not true then DRM could be easily circumvented. As soon as you log in Vista these scans start and if you try to stop them Vista disables itself.