kempo

Hi chaps, I have had my Fujitsu Siemens D Amilo 7830 D for bout 18 months, but now it won't turn on. The lights (i.e. CAPS, NUM lock etc) all turn on and stay on for bout 3 secs then the Laptop shuts off. I can't open the DVD drive to launch the repair CD! Any suggestions. Have tried running the power down, but that has not worked. Thanks muchly Kempo