i bought the new dell studio 1458 and theres no backlit keyboard with it. it just a normal keyboard that doesnt light up. then, i bought a new backlit keyboard for dell 1458 but the problem is i dont know how to set it up and replace the keyboard on my dell studio. i cant find any article that tell me how to replace the studio 14 keyboard also. is it really dell 1458 keyboard be replaced with a new one that have backlit ? and please someone guide me how to set it up. 