So I understand that if one wants to change the default program to open a specific kind of file you right click on it, select other, choose your program and click the little box that says "always open with". Makes sense. Except that I've been a mac user for eight years...have used 4 different macbooks and I have never once had this work. Once again I'm trying to do this and it isn't working. Has anyone else gotten this to work? What's the trick?