I have a charcoal iMac DV SE 500 which won't complete a proper start. The machine chimes and begins to start, and then clicks off again before anything can show on the screen. It won't start in Target Disk mode, and zapping the PRAM (starting with alt/apple/P/R, right?) has no effect. Does this sound like a dead PRAM battery, a dead 'Power/Analog' board, or a dead hard drive? Can anyone give me an idea of how much it would cost to fix, and recommend good, reliable, cheap UK repairers It's not worth much, but I have a friend who'd love it if it can be restored to life, and I'd like to get some of the files off it if it's not the drive. Thoughts, anyone?