. . . Here comes the spotlight on Palm Beach County again. The Bernie Madoff saga’s getting old, so two writers with Vanity Fair are in Wellington to look into the recent deaths of 21 polo horses before a U.S. Open match. TV equestrian sports commentator Mason Phelps is their guide. ESPN’s muckrakers, meanwhile, have already come and gone. The sports network’s newsmag E:60 explores the tragedy Tuesday at 7 p.m. with eyewitness accounts from the likes of star player Nacho Figueras . . .

. . . Don’t underestimate the magnetism of former American Idol winner David Cook. I’m told by a Sunfest official that when the $900-gold passes (backstage access, among other perks) for Saturday, the day of Cook’s show, were sold out, folks started buying five-day gold passes at $2,300-a-pop just to make sure they wouldn’t miss seeing rocker Cook close and personal . . .