NY's Westbury Music Fair was to present five-time Emmy Award winner Carol Burnett in "Laughter and Reflection with Carol Burnett: A Conversation with Carol Where the Audience Asks the Questions" on May 13. However, a bout with laryngitis forced her to cancel the gig, May 11, and westbury officials are busy calling patrons and making refunds. No word yet on whether Burnett can reschedule.

Burnett has been touring with her solo show and takes it to Atlanta's Woodruff Arts Center, May 19. She's also getting ready to appear in Putting It Together, a revamped version of the 1993 Stephen Sondheim revue, at the Mark Taper Forum in October.

The solo performance generally opens with a short video of out-takes from Burnett's time on "The Carol Burnett Show " and then concludes with audience questions.

Burnett's credits include Plaza Suite, Same Time, Next Year, I Do! I Do! and 1995's Broadway comedy, Moon Over Buffalo.

* In other Westbury theatre news, repeating the role she played on Broadway opposite the late Raul Julia, Sheena Easton will be Aldonza/Dulcinea in Westbury Music Fair's mounting of Man of La Mancha, June 2-7.

The 1965 musical, by Dale Wasserman (book), Mitch Leigh (music) and Joe Darion (lyrics), adapts Miguel de Cervantes' classic novel, Don Quixote. The hero is a deluded old man who sees himself as a gallant nobleman, one who sees purity even in a lowly prostitute, Aldonza, whom he renames Dulcinea. Man of La Mancha frames the Quixote story around Cervantes himself, imprisoned and arguing to the court that they not burn his manuscript.

Songs in La Mancha include "The Impossible Dream," "Dulcinea" and "Knight of the Woeful Countenance" and "To Each His Dulcinea."

Easton, a Scottish pop singer and two-time Grammy winner, made her theatrical debut in the Broadway La Mancha in 1992 and later appeared in Grease!.

For tickets and information on shows at Westbury Music Fair on Brush Hollow Road in Westbury call (516) 334-0800.

-- By Elizabeth Martin and David Lefkowitz