Thank you Jacadcaps. Useful ideas.

With the Kryptos-volume-and-Wayfarer-in-it , I can see myself finding a good reason to unlock it and then never resetting the machine until I've "enjoyed" a full binge.

The softlink idea sounds like a good one too. I can see how I could make a softlink to the settings folder - and lock that away (specifically TrueCrypt here or is that a synonym for Kryptos?) - but couldn't I just open the actual settings and edit it there?

Also - is the Settings folder the Prefs directory in SYS: ?

And thanks for the luck :)