Can anyone help figure out what's going wrong with my friends powerbook. It's a 12" and about 3 years old running latest OS. The keyboard cuts out intermittently every 30-15 mins and won't responded and the trackpad will only produce a right click functionality. This can be got around by a restart, but the problem will start again. Also in sleep mode (lid down) the mac will wake with the CD drive spinning (with no CD inserted).