Ok I'm using lower thirds in dsk on a projector but that last 2 rastor lines show the underneith video image.

The lower third is a full screen pic brought into vt edit and positioned to a lower position on the screen (thus I know it completly covers the last two rastor lines)

Any ideas? (Is there a setting to lower DSK graphics by 2 "rastor" lines? Also I believe the sides show through as well........