snow and fuzz

[matabhaine]

i ran bd adviser everything is green for go, my monitor is hdcp hitachi 37"screen, my graphics card is hdcp, 8800 gtx bfg oc2, 3gig ram, i have a ggw-h20l writer, i am connecting via a dvi to hdmi, the screen displays in 1900 1080 just guessing the numbers there, i can surf etc, but when i run a film i get a snow picture, i am using cyberlink power dvd, i am using xp ser pack 3 dont know if xp or vista make a difference. hope someone can shed some light on this, thanx.