I want to implement File Vault on my PowerBook. However, I know that when it first came out, there were major problems, such as prefs being corrupted, etc. Does anyone have any recent experiences with File Vault, or happen to know if the problems have been ironed out by the good folks at Apple? Also any other tidbits, such as how much space the encyrption takes up, or any other caveats I should be aware of, would be much appreciated. Thanks!