I downloaded and burned Knoppix 5.1.0. I put it in my Sony Vaio Desktop to retrieve files because my computer continuously restarts. Anyway, the CD worked at first, but when I clicked on the 2 Hard Disks that showed up, nothing happened. I tried zipping and emailing the hard disk but then the computer froze. I have to restart the computer and since then, the CD - and any following CDs I burned - does not work. Was the CD corrupt to begin with if I nothing happened when I clicked on the Hard Drives? Not sure where to go from here. Any help would be greatly appreciated. Thanks you!