BTW there is another of these cards in the machine, just doesn't have a capture source defined for it. I have also tried saying that the original card is now number 2 rather than 1. But that didn't make any difference.
Strange thing (or maybe it's the problem). But I have myTheatre on here, only using it for testing the card occasionally (and it's been there a while)...But that will start the card up.
It doesn't have any of it's scheduling turned on, so it shouldn't be holding the card right?