Basically for Chat Mauve, if a hi-bit of a DHGR is low then the byte is rendered as B&W. If the bit is high, then it is treated as color. I'm reading about Video 7, but that's just an RGB converter for the //c right? If so, I don't think the Video 7 could do what Chat Mauve does since that hi-bit would be lost in the RGB signal generator right? -Brendan