I am still stuck in 10.6 and max 5, yes, I pride myself in not being an early adopter 🙂
And it looks the same with either the geforce 9400 or 9600 graphic cards.
If I clear it with 0,0,0,0 I get the typical jitter trail effect, so that wouldn´t work very well on a moving source.
So why does the syphon processing example look correct, is it because it has a white background?