Hi Mr. Sardonicus,
That's a great piece of information because I actually got fooled twice during installations because I always looked at the bottom of the screen for that option. However, when Theog did a test for me, he reported back that he did his install with a local account. Now, although he didn't divulge his methods, I did a "careful" third install and finally noticed that option. Anyway, nice post! You may have saved others from the tightening MS grip.
Cheers!