10.4, FCP 4.5, QT7, Dual 2.0G G5 1.5GB RAM, Decklink Extreme, 4.8.1 Driver.
Keyspan USB to serial Port adapter apparently not working so using the Decklink RS422 instead.
No major problem except once in a while application will quit by itself, which is also what happens in 10.3.X.
Have captured from Component (BetaSP) to DV and also DV to component (BetaSP) “Edit-to-Tape”, no problem.