Microsoft have just released the 'Dreamscene Preview' Ultimate Extra to users of the Ultimate Edition of Windows Vista. Dreamscene, which was revealed at CES 2007, was missing from the lineup of extras at the launch of Vista, as it needed further work. This preview release allows Ultimate Edition users to see what the final technology will be like once the final version is released to the public. Your desktop background comes to life with Windows DreamScene™. When you download this Ultimate Extra, you can select a video for your desktop background the same way you select a stationary picture. You can choose one of the high-quality looping videos that we’ve included, or use a video from a company that produces content for DreamScene. You can even use your own video as a background. To download Dreamscene, click the Windows Update or Ultimate Extras shortcut on your start menu, and click the 'Check for new updates' link.