Was this ever resolved? I'm having the same problem with a RayDat/Mac Pro/Vista64. I can open VE fine so long as I don't try and use the Hammerfall/ASIO driver. If I do it crashes every time. It was fine with a Motu 828, the problem only arose when I installed the RayDat card, although the card appears to work fine with other audio apps.
So - VE fine with other card, RayDat fine with other apps. RME doesn't have anything on this particular combination, but this thread gives me some hope. Where did it end up?