We have a G3 iBook which was bought in the winter 2002/3. Its logic board failed after 12 months and the power adaptor failed after about 13 months. In the intervening period, after getting the new logic board, the battery has started to discharge very quickly. For example, if left playing music (no screen effects) on full charge it will be flat after about 2 hours. I heard that there may be a problem with aspects of battery charging on this machine and wonder if anyone can advise me on what to do. TIA Drew