While I'm still in the System Preferences, I can alter the screensaver preferences, and I can see the result when I press the Test button. If, however, I move the cursor to my screensaver hot corner, the previous/default options are used. All is then well when I close System Preferences and try again. [G4 PowerBook, 10.4.6]
Still says "Look Ahead Disatnace" in the screensaver options panel.
Otherwise, wonderful app and screensaver. Love the fog, even evil-coloured ones.
Wishes for the future: lakes, forests, even just occasionally a person waving their arms!
Thanks for sharing your work on this.