I started using my Lightscribe. The first 6 discs came out perfect. Then it started leaving an unburned perfect ring around the disc about 1/2 inch out from the center. Thinking it happened just by chance..I burned another. Same thing. I then inserted a DVD / CD lens cleaning disc & ran it twice. I still have tried burning another image...but am wondering if anyone has ever heard of this happening & if so...what causes it to happen & was there a fix? Using Windows Vista OS & Lightscribe template software.