Late 2006 24" 2.16 *Suddenly went dead, 18 months ago *Apple Service and separate Apple Repair shop said bad power supply, but maybe bad logic board. No way to tell without replacing power supply first. *Bought new 27". Let 24" sit. *Took it apart today. First diagnostic light (power) is green. Computer dead. No activity. *When inverter cable is disconnected from Logic Board, Computer powers up, start-up chime sounds, and I assume that if the LCD worked everything would be ok. All 4 diagnostic lights are green. *Reconnect the inverter cable, goes dead Any help from you experienced and knowledgable Apple users will be greatly appreciated.