I do not think the problem is with dv etc. I get motion artifacts on ANY movement SD/HD, even my cursor when it acts as a 2nd screen, it looks like interlacing but it isnt. When the movement stops the image is perfect. I have not fiddled with the HDLINK utility yet. I am connected from the decklink card to the HDLINK with 1 SDI cable and out of the the HDLINK to a new 23″ apple display (which is working fine). I try not to work with interlaced footage at all wherever possible.