Are there any ways to get some speed back into my old PowerBook G4 1.25 ? It's running for four or five years now, and although OS X doesn't clutter as much as Windows XP, I got the feeling that things were a bit snappier at the beginning. I already put in some more RAM (768 MB), but that was some time ago. What are my possibilities? On a Windows machine, I would do a defrag, I would delete the contents of the temp folders etc. but I never did anything like that on my Macs. The PB is mostly used by my wife, who was her own iMac as well, but she just can't take that to bed. Any tips or recommendations are welcome!