Sometimes Vista 64
drivers work ok in Win 7 64bit, but if this is a new card you just received, I would return it right away, it's just too much hustle, without
drivers the card is useless and pretty much most of new computers come with 64bit, not even sure if Win8 will have 32 bit version at all, so going forward this will only get worse. Running this under XP, dual boot or virtual, you need license etc., even if the card is free, it just not worth it. I'm assuming you looked on internet and couldn't find 64
drivers at all?
BTW capture card is one of few devices or programs that actually could greatly benefit from extra memory available in 64 bit system, making this even more strange.