I have had a G4 Powerbook for about 2 years now. It has been nothing but amazing until recently, it has been moving really slow. It has an 80 gb hd and it says I have 16 gb left, so I think I have plenty of room. I have 1.5 gb of memory as well so I do not think that is the problem. Is there any way to speed this thing back up to how it was the day I got it aside from deleting all my music (40 gb) and other stuff?