The format of my Yahoo calendar was recently changed arbitrarily on my MacBook Air and it is useless. I would like to return to the old format, but the Help Desk told me that is not possible. Please activate an option to go back to the old format of the Yahoo Calendar. I usually choose the "Month" layout. Curiously, the old, familiar and much friendlier and helfpul format is still in use on my Windows Desktop. Why can't I also have it on my MacBook?