MANILA, Philippines -- President Benigno Aquino has cast his vote at precinct 175-A at the Central Azucarera de Tarlac Elementary School in Tarlac. br br Voting has gone relatively smoothly at the school, except for when a paper jam prompted the Board of Election Inspectors to re-start a Precinct Count Optical Scan (PCOS) machine.br br Two of President Aquino's sisters, Ballsy and Pinky, also voted in the same school. br br Kris Aquino, meanwhile, is a registered voter in Makati.