Maybe you have heard of materials, maybe not. It's not particularly new but, after a viewer reinstall, Advanced Lighting Model was disabled and things did not look as good. Materials is a mapping of texture layers on mesh that gives things more depth or shine especially with light movement. Basically things look better with materials! There is a big "but" coming, you have to have a compatible graphics card and have it enabled in a viewer. Give it a try and you will see KiX products as they were meant to be seen.
I found a link for you HERE to show you how to enable it and the graphics cards needed. I also dug out the original second life video HERE to show you the difference it makes to your second life experience.