It's awesome that unity now let you choose in which monitor you want the unity launcher to apear.
However, once I've install the nvidia privative drivers I can't chose anymore. I force what normally is my secondary monitor as a primary so that the launcher appears on it.
Is there a way to fix this, without having to set as primary the monitor where you want the launcher to apear?
I doubt there is a graphical solution, but what file do I need to edit?