well i connected my samsung led to one of my dvi ports on my 2007 Mac Pro. had to mirror the displays to get anything other than a wallpaper on the screen. have that set, what a picture. now for sound. i have my sound out to usb sound sticks, no sound to tv unless i change the settings to line out,which cancels the sound from the usb sound sticks. i do see, while the sounds sticks are working, that the optical out is light up, does this mean its live. anyway i could have both the usb sound sticks and line out on ?