Flash movie becomes darker when published

When I publish or test my movie, the color turns out slightly darker compared to when the movie is on the stage. Now I first thought it had to do with that I had a object with 0% alpha infront of my other colored objects. But when I removed the object infront, nothing happened. I also thought that it had to do with some tranparent settings. It did not. I´ve checked every value of my objects and I can´t find any strange values in either blending/alpha or color.

Any ideas?

Thank you in advance / Criz