hi i don't know why i can't have a translucent menu bar when i switch between the options in preferences. When i activate "translucent menu bar" it just becomes slightly darker but not translucent. And my graphicscard is GeForce 8600M GT (256mb) so there should be no question that it is able to do this core-image effect. so what's going on, any idea? how can i have it back again?