There is usually a DLP Link preference to people using older sets where it cannot be turned off. Can you disable DLP Link? If not, look at areas with solid blacks on the screen through your IR glasses. Are they truly black or are they tinted red/green? On my Sammy almost all IR glasses do not block the DLP Link flash and my blacks look tinted red in 3D. Using DLP Link glasses gets the blacks looking 100% black. IR keeps sync better, but at the expense of poor picture quality.