Jinx wrote: >> You mean like using red/green bicolor LEDs to convey information? >> > > Ouch, Zing ! Find me someone who can't tell the difference between red and green. Red and brown, now, that's another story. When I was a kid I used to play snooker with this other kid that was colour blind; I used to love it when he potted the brown ball thinking it was a red. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist