My PowerBook G4 developed a problem on the motherboard. The square (female type) fitting that the keyboard ribbon connector fits into has come off the board. It must have been soldered in place, however I can't seem to find any evidence of that. I would like to re-attach it, but I'm afraid I'm at a loss as to what type of solder would be best, and what heat setting. I was told by a tech locally that it was not able to be reattached, but I find it hard to believe I would have to buy a new motherboard because of something that seems so easy to fix. Ideas??