Suresh,
The one and only success with this card was under WinXP-fouled the driver and “violently” installed an old 5.x.x driver via “have disk” option in windows device manager.Of course this was not enough for our work, so we got a new DeckLink extreme 3D and its run fine.The old card is in the States now,from where it was buyed and I have no response yet.
Nice day!
Krum
Sofia
Bulgaria