Again, that grab is so small that there's no way to tell if there's anything wrong. Looks fine the way it is, but if I make it larger, like it should be for full-size PAL, I don't know if the soft edges were there all along or if it's just a matter of enlarging a small picture.
Can you post a full-size example of what you're talking about?
Also, how are you rendering? What are the render settings?