My dad has a G3 iBook (500mhz) with 384mb RAM Unfortunately he was running 10.2.x and couldn't install skype. So he went and purchased Tiger. Will it run okay with his current RAM config - or will he need more? Can he put more in? I remember reading somehwere that one of the memory chips was soldered into the G3. So does he only have one module available? What kind of RAM modules does this iBook take?