Past few days my 1GHz G4 ibook has been acting strange. When I plug in the power adapter to the ibook sometimes it wont change the battery even though the orange indicator is on and the battery charge icon is not shown in the upper right corner of my desktop toolbar. It shows that the ibook is still running off of the battery. If i twist the power adapter plug on the ibook side sometimes the icon will say it is charging. I have played around with the adapter to make sure there isnt an issue there. So far i think its inside my ibook. So here are my questions: Is this a problem anyone else has come across before? If so, is there an easy solution. It is under warranty but I cant send it to apple yet, i have exams next week and cant part with it. How fast is apple at repairing and sending units back?