First of all, this is my second Decklink HD extreme card. The first one died early on but functioned very well up to the bitter end.
The replacement card can capture HD video from SDI or Y-Ry-By, but only if the input processing is turned on to down convert to letterbox or anamorphic, meaning standard def. I have removed all uncessary cards except disply card. I have switched card slots. I have updated drivers for the BMD card. I have updated BIOS for my computer. I have downgraded from Vista 64 to XP 32 and back to Vista 64. The problem never changes. SD capture is good. HD capture only works when I downconvert to letterbox or anamorphic.
I am at my wits end. This is going on 48 hrs.
The fine folks at BMD claim it is a resources problem. Buss sharing, etc. hence my actions regarding removing cards. But remember, my first BMD HD extreme card worked perfectly with the same system.
BTW. It plays HD video that already exist on my computer.