I'm getting this error message in Console during Prores playback.
Davinci logs: http://d.pr/f/revY
Mac Pro 4,1
GUI: 120 GT
GPU: GTX 570
Davinci Lite 9.0.4
Mac OSX 10.8.2
latest CUDA drivers
Currently I can't playback Prores files real-time, playback drops to 22-23fps. With Davinci 8 it was flawless, I've never had a problem.
Other media - for example r3d - play back as it used to, just fine.