The drug trial of embattled Jamaican dancehall entertainer Vybz Kartel was this morning adjourned in the Corporate Area Resident Magistrate's Court.  The Deejay appeared in court today in a blue pinstripe suit, white shirt, with a pair of black Bank Robber Clarks. One noticeable difference was his hair cut. Kartel had come under fire last year when he started wearing hair extensions.  When the matter was called up, the court was informed that witnesses were not available. The trial was then rescheduled for April 13. Kartel, whose real name is Adidja Palmer, is facing a charge of illegal possession of marijuana. Kartel has been offered $40,000 bail which he cannot take up because of other criminal charges against him. The police said they held Kartel and others in a hotel room in New Kingston last September. A quantity of marijuana was also reportedly found in the room.