Put the summary of the bug you're having here
What I expected to happen was...:
You know, just streaming and people being able to watch me play minecraft.
What actually happened was...:
Stream keeps studdering/jittering, stream is completely black, or is only one color.
Steps to Reproduce:
1. Stream from a mac on OSX 10.9
2. Have a video preview open while streaming
3. http://prntscr.com/2604j6 http://www.twitch.tv/gamerguy500/c/3283752 <- Those will happen or the screen (of the stream) will just be blank!
I have the same thing happen to me on 10.9. Have video as well to prove it. Tried emptying cache's and restarting, limiting myself to my internal screen and still the same issue. No updates for my GPU are available from Apple.