Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Trying to replace the motherboard in a laptop is equivalent to trying to perform a heart transplant on your dog. Don't do it. Take it in, and when they tell you it'll take x hundred dollars to fix it, take it out, sell it on Craigslist/eBay, and start saving for another computer.

FWIW, I'm typing this from a used iBook G3 that's working, so it's not necessarily an issue of buying second hand. Appears you just had bad luck with this particular book.
 
Trying to replace the motherboard in a laptop is equivalent to trying to perform a heart transplant on your dog. Don't do it.

Oh, I don't know about that! I don't know on a G4 iBook, but I've replaced logic boards on Powerbooks without a problem--just have to go slow and take your time . . .
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.