I think my PowerBook may have just bitten the dust. First off for reference - it's a top of the line 1.67GHz high-res Oct.2006 model. Notorious for the narcolepsy issue but as far as I'm aware that's it in the reliability department. I was surfing the web perfectly fine, just as well as it had been doing months prior to today when I first noticed (even though the power adapter was still plugged in) that the battery was no longer showing a charged or even just 'plugged-in' symbol in the menubar. Then I noticed this faint electric sounding click from the top-middle of the PowerBook (pretty much dead between the GPU & the CPU). I immediately shut the computer down, unplugged the charger & then yanked the battery out. I took the top case off the PowerBook & was greeted by a wonderful smell of burning electronics. Pretty unsettling. Visually the was no damage to either the logic board or the DC in board (which is where I think the problem originated). I put the laptop back together & then began the process of elimination. I popped the battery back in, & booted from the battery on the remaining charge it had. It booted perfectly. There was no clicking noise & the laptop behaved seemingly healthily. However, when I went to salvage some files from the hard drive to a USB stick - I found that all of my files on the drive are no longer accessible, even though they are essentially 'there' & viewable in the GUI. Under the assumption that the hard drive was zapped by whatever caused the problem in the first place, I shut the laptop down once more & this time took the battery out & plugged the charger in. I attempted to boot this time from an external drive. No luck. No power whatsoever & the clicking noise had returned. So in short - the laptop boots perfectly fine on the battery but no files are accessible. No power at all when plugged in to the power adapter. I'm assuming the DC in board has failed somehow which has then triggered a domino effect, taking out other peripherals i.e. the HDD, possibly by a power surge? Any ideas? There's no DC in boards on the interwebz for the particular model & Im worried in wasting cash on one if it ends up turning out to be a faulty logic board as well.