Okay, those two files;

The smaller one (around 17mb) will be all the default Bryce materials, skies, objects, trees, etc. So you really will want to install that one.

The larger one carries (around 466mb) has all the older legacy (old) mats, objects, etc, etc in it. Not needed, but you can install it if you want.

No, you do not have to install Lightning with only one computer.

Install on C or D, it does not affect either way. (it never has me, anyway)

AS

Contact Me | Gallery | Freestuff | IMDB Credits | Personal Site
"I want to be what I was when I wanted to be what I am now"