I just recently am experiencing a change in the sleep behaviour of my iBook.
Previously, when I closed the lid when it is on ... it would immediately go into sleep and the pulsating light would come on. When i opened the lid the computer would come back on instantly.
Now, when I close the lid, the Apple emblem on the lid slowly powers down, and after about 3 - 5 minutes I get the pulsating light. When I open the lid, it does not come on automatically, I have to press the return key.
I have .. repaired permissions, run Disk Warrior ... Energy saver on automatic
iBook G3 700mhz 10.2.8