Jen,
Thanks for answering this old thread. I tried many things and it appears that the Dreamcolor simply does not like DisplayPort signals from the Quadro, period. For some reason, monitoring PremierePro through the Dreamcolor DisplayPort makes PP quite sluggish, too. So – as you say, it’s back to good old AJA (or BM). I really had hoped to be able to stick a second Quadro into my Mac (as it just requires only one PCI slot), and hence have 3 monitors plus Dreamcolor options… but hey, I guess I’m getting greedy.
Thanks for the link!
And if you do find a solution… I can’t wait. Greed dies last.
Yours
Robert