I know that they say the batteries last for 6 hours, mine has been lasting from 5 to 3 hours the past year, and thats good. What my problem is that no the battery olnt lasts maybe ummm... anywhere from 60 to 90 minutes! Does it have to do with me running )S X, my iBook seems to run longer under oS 9. Well this is the second part to my question. I usualy listen to music on my iBook, I dim the screen as far as it will go but it still is quite bright. I sthere anyway I can switch my screen off when I'm not using it (like when I listen to music) I tried stting the energy saver pane so that the screen sleeps in 5 minutes but usualy in 5 minutes Im skipping to other tracks, inserting a CD or adjusting the volume or looking for a sound file...ect. So can you help?