Some info from Carrara about colors and transparencies: Black is going to be Zero percent and white is 100. As you adjust the colors dont worry about the color itself but worry about how bright it is. You should try 2 different things. 1 is to put the color on the transparancy channel and have a low value on your color channel. This will offset any major amplification that the caustics causes. The other option is to use your color on the color channel and make the traparancy a value. Just thought I'd share the wonderful tech support help:) got to love'em! So now I just need to figure out a work around from my lighting problem. Brian