'Growl' is installed with Adium. But I don't like it. So I search 'Growl' in spotlight and delete all of them. But when I clean the trashbin. Notification comes to say something is in used and can't be delete. Several times, not only once, and I always choose the 'Done' option. I'm noticed that some of those warnings contain 'ical' or some other keywords that I don't want to delete. Now I'm worried about if I have done a wrong uninstall. Did I delet something useful?