On his cellphone, his screen saver was a picture of the presidential palace ???where the dome is just hanging off.??? After his discombobulated final-round 80 at the Masters, blowing a three-shot, 54-hole lead, McIlroy also sought out his mentor in recent years, Jack Nicklaus, at the Memorial tournament. ???We had a laugh and a bit of a joke about it,??? McIlroy said. ???He said he would kick my b