it seems like there are always more issues to deal with on the pc side of things with black magic product.
Though I admit the mac drivers are not flawless, they seem to have less problems.
I’m not surprised Vista support isn’t solid, lots of people are having issues with Vista just as an O/S so Microsoft recently allowed OEMS to continue selling XP until a service pack addresses Vista’s many issues.
I can’t say for sure that your problems will be solved with an AJA product.