OS X Rot

The OS X on my PowerBook has Software Rot. It keeps losing little bits of my preferences, when it’s been sleeping for a while it often decides it needs to reboot, it loses fonts that are in ~/Library/Fonts. This isn’t supposed to happen, OS X has been rock-solid for me since the spring of 2002 through two laptops and many OS releases, and I don’t like it. I wonder how many years it’ll take to get to a state where this just doesn’t happen any more. [Update: The 10.3.4 update seems to have fixed the problem.]