I am attaching a backtrace. I'm not sure how helpful it is but if you need anything else I'll try to help as much as possible. What basically happens is Rhythmbox stops responding completely. No music, no buttons work anymore, it cannot be used at all. With compiz it grays it out. It doesn't exit on its own and i'm guessing that's why it doesn't report anything with apport. That is why I have to kill the process.
I am attaching a backtrace. I'm not sure how helpful it is but if you need anything else I'll try to help as much as possible. What basically happens is Rhythmbox stops responding completely. No music, no buttons work anymore, it cannot be used at all. With compiz it grays it out. It doesn't exit on its own and i'm guessing that's why it doesn't report anything with apport. That is why I have to kill the process.