Three-Fruit Sherbet

Turn temperature control of refrigerator to coldest setting. Combine sugar and water; boil 5 min. Add gelatin dessert- stir until dissolved, chill until slightly thickened. Meanwhile, sieve berries- add, with orange and lemon juices, to gelatin. Pour into freezing tray; freeze until firm. Turn into chilled bowl; with electric mixer or egg beater, beat until smooth. Quickly return mixture to tray; freeze until just firm, stirring once. Then reset temperature control.