PUMPED UP: Arnold Schwarzenegger with an honorary doctorate from Imadec University in Vienna. Pleading security concerns, Schwarzenegger stayed home and sent his regrets by e-mail. University president Christian Joksch praised him as "a living example of what a person starting from nothing can achieve." . . . LOST: Harry Belafonte's computer with all his research for an AIDS-awareness project he was doing for UNICEF. On his way to Washington to host a PBS tribute to Whoopi Goldberg, the singer/activist left his tote bag in a cab at Penn Station in New York. "I'd even be willing to give some kind of reward," he told the New York Post . . . CAPTURED: The hoaxer who sent Celine Dion and Candadian Prime Minister Jean Chretien letters containing mysterious white powder that turned out to be salt. Meanwhile, in the continuing saga of this years ever-postponed Emmys, organizers have redirected their mail to an undisclosed location for sorting and testing. No threats or suspicious letters yet, an Emmy spokesman says, but they're not taking chances . . . ELIGIBLE FOR A PENSION: Former Rolling Stones bassist Bill Wyman, probably the first musician in the British Invasion to turn 65 . . . CANCELLED: The publication of Justin Timberlake's first book "Inside Drive: A Novel of Basketball, Life and Love," which had been scheduled for next month. Publisher Ballantine decided the 'N Sync heartthrob was "too busy" to promote it properly, according to the New York Daily News . . . DIED: Otis Young, 69, the first black actor to break the color barrier as the star of a TV Western series. In 1968 he played a former slave turned bounty hunter in "The Outcasts" with Don Murray, who played a former Confederate and slave owner. He also appeared in "The Last Detail" with Jack Nicholson.