[Russell Lasson] "He's acutally using Blackmagic Decklink so he'll have to go into the Apple System Preferences and disable the desktop on restart."
On the 6.2 drivers no restart necessary.
I installed the new drivers. Then turned off the Desktop and viola - it went black straight away.
5 years in the waiting for that feature.
- pi
Patrick Inhofer
Finisher-in-Chief
Fini, nyc