Is there really a visual difference to the naked eye between 16-bit color and 32-bit color? I can see none. When I fix other people's computers, particularly older, under-powered units, I usually tweak down there color setting to 16-bit and find that their unit runs a bit faster. Awhile back I read that there was little visual difference to the naked eye and so I continue to tweak down older computer's color settings to 16-bit. Any comments or differing opinions?