I have a 3 year old 12" PowerBook, 1.5ghz, 768mb RAM, Superdrive. About a month or so ago I had to have the power inverter or something replaced in it for $300. Thankfully they gave me a new battery too. Here are my issues though- - Ocassionally if the battery dies it will just die instead of going to sleep - I think the internal battery needs to be replaced or something- it's always telling me that the clock has been set before march of some year-- How hard is it to replace the internal battery? - Sometimes you'll be playing music and then the sound will cut out with a pop, fiddling with the volume buttons makes it come back - If you set down the computer too quickly or firmly it will make the optical drive eject, even if there is no cd in it - Even with its new battery the battery life sucks now for some reason, and will now tell me I am on reserve battery power at 10% Or 8% instead of the usual 5%. Sometimes it will drop from 10% to 0% to dead or sleep in a matter of moments. - Airport always seems to drop out even when I am not far from the router Time for a MBP?